Vulnerability · Published Feb 8, 2021 · Assigned by mitre
CVE-2021-26528
Critical 9.1
In plain English
A critical-severity security flaw in the swupdate package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.1Critical
Exploit odds (30 days)1.5%top 25.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The mg_http_serve_file function in Cesanta Mongoose HTTP server 7.0 is vulnerable to remote OOB write attack via connection request after exhausting memory pool.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | swupdate | 2022.12+dfsg-1 | DEBIAN-CVE-2021-26528 |
| Debian:13 | swupdate | 2022.12+dfsg-1 | DEBIAN-CVE-2021-26528 |
| Debian:14 | swupdate | 2022.12+dfsg-1 | DEBIAN-CVE-2021-26528 |
Affected products (as reported)
References
- https://github.com/cesanta/mongoose/issues/1201 x_refsource_MISC