mercurial: Out-of-bounds read in cext/manifest.c
Published Oct 4, 2018
8.8
HIGHCVSS 4.0
EPSS 2.05%
Description
cext/manifest.c in Mercurial before 4.7.2 has an out-of-bounds read during parsing of a malformed manifest entry.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
mercurial
Not affected
Red Hat Enterprise Linux 7
mercurial
Not affected
Red Hat Enterprise Linux 8
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 |
| Red Hat Enterprise Linux 8 | mercurial | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:P/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.05% (0.02049) | 80.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.03% (0.02033) | 78.47th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.24% (0.00244) | 64.91th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.24% (0.00244) | 63.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00244) | 60.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (8)
- https://access.redhat.com/security/cve/CVE-2018-17983 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1637556 Issue Tracking
- https://github.com/advisories/GHSA-p575-cf9h-wv42 Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2018-91.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2018-17983
- https://www.cve.org/CVERecord?id=CVE-2018-17983
- https://www.mercurial-scm.org/repo/hg/rev/5405cb1a7901 x_refsource_MISCPatch
- https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.7.2_.282018-10-01.29 x_refsource_MISCRelease Notes
Change history (0)
No recorded changes yet.