DEBIAN-CVE-2026-103436

Source
https://security-tracker.debian.org/tracker/CVE-2026-103436
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103436.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-103436
Upstream
Published
2026-09-30T16:17:09Z
Modified
2026-10-03T08:47:33Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / apcupsd

Package

Name
apcupsd
Purl
pkg:deb/debian/apcupsd?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.14.14-3.1
3.14.14-4
3.14.14-5
3.14.14-6
3.14.14-7

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103436.json"

Debian:13 / apcupsd

Package

Name
apcupsd
Purl
pkg:deb/debian/apcupsd?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.14.14-5
3.14.14-6
3.14.14-7

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103436.json"

Debian:14 / apcupsd

Package

Name
apcupsd
Purl
pkg:deb/debian/apcupsd?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.14.14-5
3.14.14-6
3.14.14-7

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103436.json"