Vulnerability · Published Sep 18, 2026 · Assigned by redhat-cnalr
CVE-2026-75893Heap based buffer overflow at ipaccess_proxy_read_msg()
High 7.5
In plain English
A high-severity heap buffer overflow in osmo-bsc from Osmocom. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In osmo-bsc from 1.0.1 through 1.14.1 a heap based buffer overflow issue was found in the ipaccess_proxy_read_msg() function via IPA frame lengths.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | osmo-bsc | no fix listed | DEBIAN-CVE-2026-75893 |
| Debian:13 | osmo-bsc | no fix listed | DEBIAN-CVE-2026-75893 |
| Debian:14 | osmo-bsc | 1.15.0-2 | DEBIAN-CVE-2026-75893 |
| Ubuntu:22.04:LTS | osmo-bsc | no fix listed | UBUNTU-CVE-2026-75893 |
| Ubuntu:24.04:LTS | osmo-bsc | no fix listed | UBUNTU-CVE-2026-75893 |
| Ubuntu:26.04:LTS | osmo-bsc | no fix listed | UBUNTU-CVE-2026-75893 |
| Ubuntu:26.10 | osmo-bsc | no fix listed | UBUNTU-CVE-2026-75893 |
Affected products (as reported)
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H