CVE-2026-103436

Published: Set 30, 2026 Last Modified: Set 30, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 3,7
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none

Description

AI Translation Available

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.

457

Use of Uninitialized Variable

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Other Authorization
Potential Impacts:
Other
Applicable Platforms
Languages: C, C++, Perl, PHP, Not Language-Specific
Likelihood of Exploit: High
View CWE Details
https://bugzilla.redhat.com/show_bug.cgi?id=2493140
https://bugzilla.redhat.com/show_bug.cgi?id=2493140
https://github.com/therealbstern/apcupsd/blob/224d19d5faa50…
https://github.com/therealbstern/apcupsd/blob/224d19d5faa508d04267f6135fe53d508…
https://sourceforge.net/projects/apcupsd/
https://sourceforge.net/projects/apcupsd/