CVE-2016-3630

mediumpriority · track · 37EPSS 0.049 · 92 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

4.87% (92nd) EPSS

CVSS 6.8 · medium

Is it mine?

12 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

The binary delta decoder in Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a (1) clone, (2) push, or (3) pull command, related to (a) a list sizing rounding error and (b) short records.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-19USprimary

affected products (12)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
debian debian linux= 7.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 22nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 23nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
mercurial mercurial≤ 3.7.2nvdUScpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*
opensuse leap= 42.1nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
opensuse opensuse= 13.2nvdUScpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:*
suse linux enterprise debuginfo= 11nvdUScpe:2.3:a:suse:linux_enterprise_debuginfo:*:*:*:*:*:*:*:*
suse linux enterprise software development kit= 11nvdUScpe:2.3:o:suse:linux_enterprise_software_development_kit:*:*:*:*:*:*:*:*
suse linux enterprise software development kit= 12nvdUScpe:2.3:o:suse:linux_enterprise_software_development_kit:*:*:*:*:*:*:*:*
PyPI mercurial< 3.7.3osvUSpkg:pypi/mercurial

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-9vjf-jjcq-3gh7Mercurial arbitrary code execution vulnerability2022-05-14ghsa · osvUS
The binary delta decoder in Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a (1) clone, (2) push, or (3) pull command, related to (a) a list sizing rounding error and (b) short records.
PYSEC-2016-292016-04-13vendor · osvUS
The binary delta decoder in Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a (1) clone, (2) push, or (3) pull command, related to (a) a list sizing rounding error and (b) short records.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2016-04-13modified 2026-06-17

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+362 more

references (36)

External citations — patches, advisories, analysis.

scry

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