Low severity · published Oct 26, 2026
CVE-2026-116544
Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output
New
3.7
CVSS
0.4%
EPSS
No
On KEV
Description
Open5GS 2.6.1 through 2.8.0 contains an out-of-bounds read vulnerability in parse_scheme_output() in lib/sbi/conv.c during SUCI de-concealment due to incomplete length validation. Remote unauthenticated UEs or SBI peers can submit a crafted SUCI with a 42-byte scheme output to a UDM, triggering a heap over-read past the buffer.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
open5gs · open5gs
2.6.1 through 2.8.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116544
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116544
github.com
https://github.com/open5gs/open5gs
github.com
https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/conv.c#L39
github.com
https://github.com/open5gs/open5gs/commit/fdddcd5e3359703f0a945b308e64494a18a534f1
github.com
https://github.com/open5gs/open5gs/security/advisories/GHSA-vp5f-rg8g-8p7j
www.vulncheck.com
https://www.vulncheck.com/advisories/open5gs-2.6.1-through-2.8.0-out-of-bounds-read-via-parse-scheme-output
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