CVE-2026-75893
Heap based buffer overflow at ipaccess_proxy_read_msg()
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Heap based buffer overflow at ipaccess_proxy_read_msg()
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.
- Record
CVE-2026-75893- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2026-83272
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.
- Record
EUVD-2026-83272- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5p56-5h9g-2gjv
In osmo-bsc from 1.0.1 through 1.14.1 a heap based buffer overflow issue was found in the...
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.
- Record
GHSA-5p56-5h9g-2gjv- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-75893- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-75893
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.
- Record
DEBIAN-CVE-2026-75893- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-75893
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.
- Record
UBUNTU-CVE-2026-75893- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
osmo-bscDebian:12 |
All versions, plus listed versions 1.12.1-11.12.1-21.12.1-31.13.0-11.13.0-2 Show 5 moreShow less1.14.1-11.14.1-21.15.0-11.15.0-21.9.0-3 |
None known |
osmo-bscDebian:13 |
All versions, plus listed versions 1.13.0-21.14.1-11.14.1-21.15.0-11.15.0-2 |
None known |
osmo-bscDebian:14 |
before 1.15.0-2, plus listed versions 1.13.0-21.14.1-11.14.1-21.15.0-1 |
1.15.0-2 |
osmo-bscUbuntu:20.04:LTS |
All versions, plus listed versions 1.3.0-2 |
None known |
osmo-bscUbuntu:22.04:LTS |
All versions, plus listed versions 1.6.1+dfsg1-41.6.1+dfsg1-4build2 |
None known |
osmo-bscUbuntu:24.04:LTS |
All versions, plus listed versions 1.9.0-31.9.0-3build2 |
None known |
osmo-bscUbuntu:26.10 |
All versions, plus listed versions 1.13.0-2build1 |
None known |
osmo-bscUbuntu:26.04:LTS |
All versions, plus listed versions 1.13.0-21.13.0-2build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-75893 is a high vulnerability (CVSS 7.5) in Osmocom Osmo-bsc, published September 18, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 39th percentile. Fixed in osmo-bsc 1.15.0-2.