CVE-2026-103436

State
Published
Severity
3.7 Low
Published
Sep 30, 2026
Updated
Oct 2, 2026
Reserved
Sep 30, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.13.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:Nmitre

Weaknesses

  • CWE-457 Use of Uninitialized Variable

Affected Products

ProductVersions
apcupsdapcupsd
  • 3.14.14 and earlierAffected

References

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