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TI-2026-65687 Aliases CVE-2026-103432GHSA-mx74-w6g6-vppg

Stack-based buffer overflow in apcupsd

Priority LOW 37CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

apcupsd through 3.14.14 has an sscanf stack-based buffer overflow in getupsvar() in src/cgi/upsfetch.c (used by upsstats.cgi, multimon.cgi, and upsfstats.cgi), a related issue to CVE-2026-15544.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0038 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
apcupsdapcupsdup to 3.14.14—No fix listedCNA
  • apcupsd Vendorapcupsd Affected up to 3.14.14 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-103432
  2. 2026-10-03 Alias added: GHSA-mx74-w6g6-vppg

References

Other 3

  • TI-2003-00093 Unknown vulnerability in apcupsd before 3.8.6, and 3.10.x before 3.10.5, allows remote… CVSS 2.0HIGH 10.0
  • TI-2019-09397 Apcupsd 0.3.91_5, as used in pfSense through 2.4.4-RELEASE-p3 and other products, has an… CVSS 3.0CRITICAL 9.8
  • TI-2017-05495 In Adam Kropelin adk0212 APC UPS Daemon through 3.14.14, the default installation of… CVSS 3.0HIGH 8.4
  • TI-2019-09396 Apcupsd 0.3.91_5, as used in pfSense through 2.4.4-RELEASE-p3 and other products, has an… CVSS 3.0MEDIUM 6.1
  • TI-2026-65688 apcupsd through 3.14.14 discloses uninitialized stack memory in getupsvar() in… CVSS 3.1LOW 3.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences