The Debian xscreensaver 5.42+dfsg1-1 package for XScreenSaver has cap_net_raw enabled for…
Priority LOW 34CWE-269Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-269.
Summary
The Debian xscreensaver 5.42+dfsg1-1 package for XScreenSaver has cap_net_raw enabled for the /usr/libexec/xscreensaver/sonar file, which allows local users to gain privileges because this is arguably incompatible with the design of the Mesa 3D Graphics library dependency.
Why it matters now
EPSS 0.00318 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xscreensaver_project:xscreensaver:5.42\+dfsg1-1:*:*:*:*:*:*:* | 5.42+dfsg1-1 | Vulnerable | Xscreensaver Project |
- cpe:2.3:a:xscreensaver_project:xscreensaver:5.42\+dfsg1-1:*:*:*:*:*:*:* Versions 5.42+dfsg1-1 Vulnerable ·Xscreensaver Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31523
- 2026-10-03 Alias added: GHSA-74g6-fv7f-g2hq
References
More Xscreensaver Project Xscreensaver vulnerabilities
- TI-2011-01909 Missing authentication in xscreensaver CVSS 3.1HIGH 7.8
- TI-2021-13575 XScreenSaver 5.45 can be bypassed if the machine has more than ten disconnectable video… CVSS 3.1MEDIUM 4.6
- TI-2015-06670 driver/subprocs.c in XScreenSaver before 5.34 does not properly perform an internal… CVSS 2.0LOW 2.1
Sources
- CVE-2021-31523 · CVE Program
- CVE-2021-31523 · NVD
- FIRST EPSS
- GHSA-74g6-fv7f-g2hq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences