CVE•Published 2026-09-30•Modified 2026-10-02•0 articles on news•4 live references•NVD data
CVE-2026-103436
Vulnerability data via NVD (ingested)
CVSS v3.1
3.7
LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-09-30
Modified 2026-10-02
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-103436Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-103436Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-103436Censys host search filtered to this CVE id.
grep.app
CVE-2026-103436Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-103436GitHub code search for direct mentions.
Google dork
"CVE-2026-103436" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-103436 on GitHub.
We haven't classified any articles referencing CVE-2026-103436 yet. The external references above still apply.