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CVE-2026-103432

8.1 HIGHpublic exploit available

Published 2026-09-30 · Updated 2026-09-30

AI risk analysis

Summary
The flaw is a stack-based buffer overflow in the getupsvar() function of apcupsd, which can lead to arbitrary code execution. This matters because it allows an attacker to exploit the vulnerability to gain control over the system.
Exploitability
Exploitation is relatively easy given the high CVSS score, and requires access to the affected web interfaces (upsstats.cgi, multimon.cgi, upsfstats.cgi).
Blast radius
If exploited, the impact could be severe, potentially leading to complete system compromise and loss of sensitive data.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to apcupsd 3.14.14 or later.
rcewebbuffer-overflow

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-121

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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