UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549

FORM 10-D

ASSET-BACKED ISSUER
DISTRIBUTION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934

For the monthly distribution period from:
JuneJuly 1718, 2023 to JulyAugust 17, 2023

Commission File Number of issuing entity: 333-172143-06
Central Index Key Number of issuing entity: 0001556487

COMM 2012-CCRE3 Mortgage Trust
(Exact name of issuing entity as specified in its charter)

Commission File Number of depositor: 333-172143
Central Index Key Number of depositor: 0001013454

Deutsche Mortgage & Asset Receiving Corporation
(Exact name of depositor as specified in its charter)

Central Index Key Number of sponsor (if applicable): 0001558761
Cantor Commercial Real Estate Lending, L.P.
(Exact name of sponsor as specified in its charter)

Central Index Key Number of sponsor (if applicable): 0001541294
German American Capital Corporation
(Exact name of sponsor as specified in its charter)

Central Index Key Number of sponsor (if applicable): 0001541468
Ladder Capital Finance LLC
(Exact name of sponsor as specified in its charter)

Lainie Kaye (212) 250-2500
(Name and telephone number, including area code, of the person to
contact in connection with this filing)

New York
(State or other jurisdiction of incorporation or organization
of the issuing entity)

Lower Tier Remic 46-1194453
Upper Tier Remic 46-1412891
Grantor Trust 46-6373885
(I.R.S. Employer Identification No.)

c/o Deutsche Bank Trust Company Americas as Certificate Administrator
1761 East St. Andrew Place, Santa Ana CA
(Address of principal executive offices of the issuing entity)

92705
(Zip Code)

(212) 250-2500
(Telephone number, including area code)

NONE
(Former name, former address, if changed since last report)

Registered / reporting pursuant to (check one)
Title of Class  Section 12(b)  Section 12(g)  Section 15(d)  Name of Exchange
(if Section 12(b))
Class A-1           [ ]             [ ]             [X]        Not Applicable
Class A-2           [ ]             [ ]             [X]        Not Applicable
Class A-SB          [ ]             [ ]             [X]        Not Applicable
Class A-3           [ ]             [ ]             [X]        Not Applicable
Class X-A           [ ]             [ ]             [X]        Not Applicable

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act
of 1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days. Yes _X_   No ____


Part I - DISTRIBUTION INFORMATION

Item 1.  Distribution and Pool Performance Information.
On  JulyAugust 17, 2023 a distribution was made to holders of the
certificates issued by COMM 2012-CCRE3 Mortgage Trust.  The
distribution report is attached as Exhibit 99.1 to this Form 10-D.

During the distribution period from JuneJuly 1718, 2023 to JulyAugust 17, 2023
no assets securitized by Deutsche Mortgage & Asset Receiving
Corporation (the "Depositor") and held by COMM 2012-CCRE3 Mortgage
Trust were the subject of a demand to repurchase or replace for breach
of the representations and warranties contained in the underlying
transaction documents.

The Depositor filed a Form ABS-15G pursuant to Rule 15Ga-1 under the
Securities Exchange Act of 1934 on February 14, 2023.  The CIK number
of the Depositor is 0001013454.

Cantor Commercial Real Estate Lending, L.P. ("CCRE"), one of the
sponsors and mortgage loan sellers, filed a Form ABS-15G pursuant to
Rule 15Ga-1 under the Securities Exchange Act of 1934 on
January 27, 2023.  The CIK number for CCRE is 0001558761.

German American Capital Corporation ("GACC"), one of the sponsors and
mortgage loan sellers, filed a Form ABS-15G pursuant to Rule 15Ga-1
under the Securities Exchange Act of 1934 on February 14, 2023.  The
CIK number of GACC is 0001541294.

Ladder Capital Finance LLC ("Ladder"), one of the sponsors and mortgage
loan sellers, filed a Form ABS-15G pursuant to Rule 15Ga-1 under the
Securities Exchange Act of 1934 on February 10, 2023.  The CIK number
of Ladder is 0001541468.


Part II - OTHER INFORMATION

Item 2. Legal Proceedings.

Disclosure from Deutsche Bank Trust Company Americas, as certificate administrator,
and as custodian:

Deutsche Bank Trust Company Americas ("DBTCA") and Deutsche Bank National Trust
Company ("DBNTC") have been sued by investors in civil litigation concerning their role as
trustees of certain residential mortgage-backed securities ("RMBS") trusts.

On June 18, 2014, a group of investors, including funds managed by Blackrock Advisors, LLC,
PIMCO-Advisors, L.P., and others, filed an action against DBNTC and DBTCA in New York State
Supreme Court alleging that DBNTC and DBTCA failed to perform purported duties, as trustees
for 544 private-label RMBS trusts, to enforce breaches of representations and warranties as to
mortgage loans held by the trusts and to enforce breaches by servicers of their mortgage loan
servicing obligations for the trusts.  During the course of the litigation, plaintiffs dismissed the
case from New York State Supreme Court and refiled two separate cases, one in the U.S. District
Court for the Southern District of New York (the "BlackRock SDNY Case") and the other in the
Superior Court of California, Orange County (the "BlackRock California Case").  Pursuant to a
settlement among the parties, the BlackRock SDNY Case was dismissed on December 6, 2018,
and the BlackRock California Case was dismissed on January 11, 2019.

On September 27, 2017, DBTCA was added as a defendant to a case brought by certain special
purpose entities including Phoenix Light SF Limited in the U.S. District Court for the Southern
District of New York, in which the plaintiffs previously alleged incorrectly that DBNTC served as
trustee for all 43 of the trusts at issue.  On September 27, 2017, plaintiffs filed a third amended
complaint that names DBTCA as a defendant in addition to DBNTC.  DBTCA serves as trustee
for one of the 43 trusts at issue.  DBNTC serves as trustee for the other 42 trusts at issue.
Plaintiffs' third amended complaint brings claims for violation of the U.S. Trust Indenture Act of
1939 ("TIA"); breach of contract; breach of fiduciary duty; negligence and gross negligence;
violation of the New York Streit Act ("Streit Act"); and breach of the covenant of good faith.
However, in the third amended complaint, plaintiffs acknowledge that, before DBTCA was added
to the case, the court dismissed plaintiffs' TIA claims, negligence and gross negligence claims,
Streit Act claims, claims for breach of the covenant of good faith, and certain theories of plaintiffs'
breach of contract claims, and plaintiffs only include these claims to preserve any rights on
appeal.  Plaintiffs allege damages of "hundreds of millions of dollars."  On November 13, 2017,
DBNTC and DBTCA filed an answer to the third amended complaint.  On December 7, 2018,
DBNTC and DBTCA filed a motion for summary judgment.  Also on December 7, 2018, plaintiffs,
jointly with Commerzbank AG (see description of Commerzbank case below), filed a motion for
partial summary judgment.  On October 27, 2021, DBNTC and DBTCA filed a supplemental
motion for summary judgment relating to plaintiffs' standing.  On February 8, 2022, the court
issued an order in which it granted DBNTC and DBTCA's supplemental motion for summary
judgment, granted in part DBNTC and DBTCA's initial motion for summary judgment, and denied
plaintiffs' motion for partial summary judgment.  As a result of that order, all of plaintiffs' claims
were dismissed with prejudice.  On April 26, 2023, the United States Court of Appeals for the
Second Circuit affirmed the court's summary judgment order.

On November 30, 2017, DBTCA was added as a defendant to a case brought by Commerzbank
AG ("Commerzbank") in the U.S. District Court for the Southern District of New York, in which
Commerzbank previously alleged incorrectly that DBNTC served as trustee for all 50 of the trusts
at issue.  On November 30, 2017, Commerzbank filed a second amended complaint that names
DBTCA as a defendant in addition to DBNTC.  DBTCA serves as trustee for 1 of the 50 trusts at
issue.  DBNTC serves as trustee for the other 49 trusts at issue.  Commerzbank's second
amended complaint brings claims for violation of the TIA; breach of contract; breach of fiduciary
duty; negligence; violation of the Streit Act; and breach of the covenant of good faith.  However, in
the second amended complaint, Commerzbank acknowledges that, before DBTCA was added to
the case, the court dismissed Commerzbank's TIA claims for the trusts governed by pooling and
servicing agreements, as well as its Streit Act claims and claims for breach of the covenant of
good faith, and Commerzbank only includes these claims to preserve any rights on appeal.  The
second amended complaint alleges that DBNTC and DBTCA caused Commerzbank to suffer
"hundreds of millions of dollars in losses," but the complaint does not include a demand for
money damages in a sum certain.  On January 29, 2018, DBNTC and DBTCA filed an answer to
the second amended complaint.  On December 7, 2018, DBNTC and DBTCA filed a motion for
summary judgment.  Also on December 7, 2018, Commerzbank, jointly with the Phoenix Light
plaintiffs, filed a motion for partial summary judgment.  On February 8, 2022, the court issued an
order in which it granted in part DBNTC and DBTCA's motion for summary judgment and denied
plaintiffs' motion for partial summary judgment.  As a result of that order, many of plaintiffs' claims
and theories were dismissed with prejudice.  Discovery is ongoing.

On December 30, 2015, IKB International, S.A. in Liquidation and IKB Deutsche Industriebank A.G.
(collectively, "IKB"), as an investor in 37 RMBS trusts, filed a summons with notice in the
Supreme Court of the State of New York, New York County, against DBNTC and DBTCA as trustees
of the trusts. On May 27, 2016, IKB served its complaint asserting claims for breach of
contract, breach of fiduciary duty, breach of duty to avoid conflicts of interest, violation
of the Streit Act, violation of the TIA, violation of Regulation AB, and violation of
Section 9 of the Uniform Commercial Code. IKB alleges that DBNTC and DBTCA are liable for
over U.S. $268 million in damages. On October 5, 2016, DBNTC and DBTCA, together with several
other trustees defending lawsuits by IKB, filed a joint motion to dismiss. On January 6, 2017,
IKB filed a notice of discontinuance, voluntarily dismissing with prejudice all claims as to
three trusts. On June 20, 2017, the parties filed a stipulation, voluntarily dismissing with
prejudice all claims as to four additional trusts. On January 27, 2021, the court granted in
part and denied in part DBNTC and DBTCA's motion to dismiss. The court granted the motion to
dismiss with respect to IKB's claims for violations of the Streit Act, Regulation AB, and
Section 9 of the Uniform Commercial Code, as well as certain aspects of IKB's claims for
breach of contract, breach of fiduciary duty, and violation of the TIA. The court denied the
remainder of the motion to dismiss. IKB's remaining claims for breach of contract, breach of
fiduciary duty, breach of duty to avoid conflicts of interest, and violation of the TIA will
proceed. On May 10, 2021, DBNTC and DBTCA filed a notice of appeal with the New York Supreme
Court Appellate Division, First Department, regarding certain aspects of the court's order
on the motion to dismiss.  On May 20, 2021, IKB filed a notice of cross appeal with respect
to other aspects of that order. On August 30, 2022, the New York Supreme Court, Appellate
Division, First Department affirmed in part and reversed in part the court's order on the
motion to dismiss. After DBNTC and DBTCA appealed the First Department's decision, on
June 15, 2023, the New York Court of Appeals reversed the First Department's decision in
part, dismissing certain additional contract claims, as well as IKB's claims for breach of
fiduciary duty and breach of duty to avoid conflicts of interest.  On June 2, 2021, IKB
filed a motion for re-argument regarding certain aspects of the court's order on the
motion to dismiss, which the court denied on August 3, 2021.  On May 13, 2021, DBNTC and
DBTCA filed an answer to the complaint.  On October 28, 2021, the parties filed a
stipulation, voluntarily dismissing with prejudice all claims as to seven additional
trusts.  On December 29, 2021, the parties filed a stipulation, voluntarily dismissing
with prejudice all claims as to one additional trust.  On April 22, 2022, the parties
filed a stipulation, voluntarily dismissing with prejudice all claims as to 17 certificates
at issue, including all claims as to 5 trusts.  On February 28, 2023, the parties filed
a stipulation, voluntarily dismissing with prejudice all claims as to two trusts, leaving
15 trusts at issue.  Discovery is ongoing.

It is DBTCA's belief that it has no pending legal proceedings (including, based on DBTCA's
present evaluation, the litigation disclosed in the foregoing paragraphs) that would materially
affect its ability to perform its duties under the Pooling and Servicing Agreement for this
transaction.

Item 6.  Significant Obligors of Pool Assets.
The 260 and 261 Madison Avenue Mortgage Loan, which represented 10% or more of the pool
assets held by the issuing entity as of its cut-off date, is no longer a pool asset.

Item 10. Exhibits.
(a) The following is a list of documents filed as part
    of this Report on Form 10-D:

(99.1)   Monthly Report distributed to holders of the
         certificates issued by COMM 2012-CCRE3 Mortgage Trust,
         relating to the JulyAugust 17, 2023 distribution.

(b) The exhibits required to be filed by the Registrant
    pursuant to this Form are listed above.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

Deutsche Mortgage & Asset Receiving Corporation
(Depositor)


/s/ R. Chris Jones
Name:  R. Chris Jones
Title: Director


/s/ Matt Smith
Name:  Matt Smith
Title: Director



Date:    JulyAugust 2524, 2023
Filing Compare · COMM 2012-CCRE3 Mortgage Trust
