CVE-2023-43785: fedoraproject fedora Out-of-bounds Write
CVSS: 6.5v3.1MediumModified
AliasesALPINE-CVE-2023-43785UBUNTU-CVE-2023-43785DEBIAN-CVE-2023-43785
Published 10-10-2023Last modified 06-11-2025
Vulnerability summary
CVE-2023-43785 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in fedoraproject fedora. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.67%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 10 · Related 5Timeline
- 10-10-2023PublishedVulnerability first disclosed.
- 06-11-2025Last modifiedVulnerability information updated.
Description
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
CVSS metrics
5 scores · 5 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NSources5 sources · 5.5–6.5
- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.67%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
+0.04 pp
From 0.63% on 19-09-2026
19-09-202619-10-2026
EPSS score0.67%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- libx11< 1.8.7-r0
Debian1 product
- libx11< 2:1.8.4-2+deb12u2 | < 2:1.8.7-1
Fedoraproject1 product
- fedoraEOL38
Redhat1 product
- enterprise_linux8.0 | 9.0
Ubuntu1 product
- libx11< 2:1.6.2-1ubuntu2.1+esm5 | < 2:1.6.3-1ubuntu2.2+esm4 | < 2:1.6.4-3ubuntu0.4+esm2 | < 2:1.6.9-2ubuntu1.6 | < 2:1.7.5-1ubuntu0.3
X.org1 product
- libx11< 1.8.7
6 vendors · 6 products
References
13 links- security.netapp.com/advisory/ntap-20231103-0006/X Transferred
