Apcupsd vulnerabilities
Published CVEs affecting Apcupsd products: 2 record(s), with severity, exploitation and fixes.
CVE-2026-103436
Low · 3.7
CWE-457 Sep 30, 2026
Use of Uninitialized Variable in Apcupsd
apcupsd through 3.14.14 discloses uninitialized stack memory in getupsvar() in src/cgi/upsfetch.c (used by upsstats.cgi, multimon.cgi, and upsfstats.cgi. On the single-field path, when the matched STATUS line has fewer than three whitespace-separated tokens, sscanf("%*s %*s %s", answer) performs no assignment but the function returns success, and thus the caller prints the uninitialized destination buffer into the HTTP response.
CVE-2026-103432
High · 8.1
CWE-121 Sep 30, 2026
Stack-based Buffer Overflow in Apcupsd
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.