HIGH
mercurial: remote code execution in binary delta decoding
Published Apr 13, 2016
8.7
HIGHCVSS 4.0
EPSS 4.87%
Description
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.
Affected products
No data.
Configuration 1
OR
- 22
- 23
Configuration 4
OR
- 7.0
- 8.0
Configuration 5
OR
- 11
- 13.2
- 11
- 12
- 12
No data.
Red Hat Enterprise Linux 6
mercurial
Not affected
Red Hat Enterprise Linux 7
mercurial
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | mercurial | Not affected | n/a |
| Red Hat Enterprise Linux 7 | mercurial | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
8.7 HIGH GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction Passive
Vulnerable System Confidentiality High
Vulnerable System Integrity High
Vulnerable System Availability High
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
8.8 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
8.8 HIGH GHSA
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.87% 0.04872
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.04872
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.87% (0.04872) | 91.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.83% (0.04832) | 90.82th | v5 (v2026.06.15) |
| May 27, 2025 | 5.13% (0.05126) | 89.32th | v4 (v2025.03.14) |
| Apr 15, 2025 | 11.26% (0.11258) | 93.08th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.72% (0.08725) | 91.66th | v4 (v2025.03.14) |
| Mar 29, 2025 | 11.33% (0.11326) | 89.20th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.72% (0.08725) | 91.84th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.73% (0.09732) | 94.81th | v3 (v2023.03.01) |
| Dec 12, 2024 | 3.50% (0.03498) | 91.90th | v3 (v2023.03.01) |
| May 13, 2024 | 3.06% (0.03061) | 90.95th | v3 (v2023.03.01) |
| Nov 30, 2023 | 2.99% (0.02994) | 89.83th | v3 (v2023.03.01) |
| Jun 22, 2023 | 2.77% (0.02765) | 89.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.54% (0.03535) | 90.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.83% (0.08830) | 93.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.83% (0.08830) | 93.43th | v2 (v2022.01.01) |
| Feb 22, 2022 | 8.83% (0.08830) | 83.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.87% (0.07871) | 81.58th | v2 (v2022.01.01) |
Weaknesses (2)
References (18)
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181505.html vendor-advisoryx_refsource_FEDORAMailing ListVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181542.html vendor-advisoryx_refsource_FEDORAMailing ListVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00016.html vendor-advisoryx_refsource_SUSEMailing ListVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00017.html vendor-advisoryx_refsource_SUSEMailing ListVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00018.html vendor-advisoryx_refsource_SUSEMailing ListVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00043.html vendor-advisoryx_refsource_SUSEMailing ListVendor Advisory
- http://www.debian.org/security/2016/dsa-3542 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html x_refsource_CONFIRMThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-3630 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1322264 Issue Tracking
- https://github.com/advisories/GHSA-9vjf-jjcq-3gh7 Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2016-29.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2016-3630
- https://security.gentoo.org/glsa/201612-19 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://selenic.com/repo/hg-stable/rev/b6ed2505d6cf x_refsource_CONFIRMThird Party Advisory
- https://selenic.com/repo/hg-stable/rev/b9714d958e89 x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-3630
- https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_3.7.3_.282016-3-29.29 x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 13, 2016
Updated Aug 6, 2024
Reserved Mar 21, 2016
Link CVE-2016-3630
CISA Vulnrichment
GHSA-9VJF-JJCQ-3GH7 Updated n/a