CVE-2026-103436

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Source

https://cve.org/CVERecord?id=CVE-2026-103436

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103436.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-103436

Downstream

Published

2026-09-30T15:38:48Z

Modified

2026-10-04T02:30:35Z

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.

Database specific

{
    "cna_assigner":  "mitre",
    "cwe_ids":  [
        "CWE-457"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103436.json"
}

References

Affected packages

Git / github.com/therealbstern/apcupsd

Affected ranges

Type

GIT

Repo

https://github.com/therealbstern/apcupsd

Events

Introduced

Fixed

a60450edad6e9eb7f66b9b0715b5fa25655c4e18

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "3.14.14"
        },
        {
            "fixed":  "3.14.14"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103436.json"