CVE-2020-23915
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h...
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
- Record
CVE-2020-23915- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
- Record
CVE-2020-23915- Updated
- 2026-11-02
EUVDEUVD-2020-16652 No score
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
- Record
EUVD-2020-16652- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9rv8-qq6h-6qqx
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h...
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
- Record
GHSA-9rv8-qq6h-6qqx- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
- Record
CVE-2020-23915- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-23915
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
- Record
DEBIAN-CVE-2020-23915- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-23915
An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
- Record
UBUNTU-CVE-2020-23915- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
retroarchDebian:12 |
All versions, plus listed versions 1.14.0+dfsg-11.15.0+dfsg-11.16.0.3+dfsg-11.18.0+dfsg-11.19.1+dfsg-1 Show 6 moreShow less1.20.0+dfsg-11.20.0+dfsg-21.20.0+dfsg-31.22.2+dfsg-11.22.2+dfsg-21.22.2+dfsg-3 |
None known |
retroarchDebian:13 |
All versions, plus listed versions 1.20.0+dfsg-21.20.0+dfsg-31.22.2+dfsg-11.22.2+dfsg-21.22.2+dfsg-3 |
None known |
retroarchDebian:14 |
All versions, plus listed versions 1.20.0+dfsg-21.20.0+dfsg-31.22.2+dfsg-11.22.2+dfsg-21.22.2+dfsg-3 |
None known |
salmonUbuntu:24.04:LTS |
All versions, plus listed versions 1.10.2+ds1-11.10.2+ds1-1build11.10.2+ds1-1build2 |
None known |
retroarchUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 1.14.0+dfsg-1build11.15.0+dfsg-11.16.0.3+dfsg-11.18.0+dfsg-11.18.0+dfsg-1ubuntu0.1~esm1 |
None known |
retroarchUbuntu:25.10 |
All versions, plus listed versions 1.20.0+dfsg-2build11.20.0+dfsg-2build21.20.0+dfsg-31.20.0+dfsg-3ubuntu0.1 |
None known |
salmonUbuntu:25.10 |
All versions, plus listed versions 1.10.2+ds1-1build2 |
None known |
retroarchUbuntu:26.10 |
All versions, plus listed versions 1.22.2+dfsg-2ubuntu1 |
None known |
salmonUbuntu:26.10 |
All versions, plus listed versions 1.10.3+ds1-3 |
None known |
retroarchUbuntu:26.04:LTS |
All versions, plus listed versions 1.20.0+dfsg-31.22.2+dfsg-11.22.2+dfsg-21.22.2+dfsg-2build11.22.2+dfsg-2ubuntu1 |
None known |
salmonUbuntu:26.04:LTS |
All versions, plus listed versions 1.10.2+ds1-1build21.10.3+ds1-11.10.3+ds1-3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-23915 is a medium vulnerability (CVSS 5.5) in Cpp-peglib Project Cpp-peglib, published April 21, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.89%, the 59th percentile. No source names a fixed version.
References
github.com/yhirose/cpp-peglib/issues/122
cwe.mitre.org/data/definitions/126.html
nvd.nist.gov/vuln/detail/CVE-2020-23915
security-tracker.debian.org/tracker/CVE-2020-23915
ubuntu.com/security/CVE-2020-23915
cve.org/CVERecord?id=CVE-2020-23915