TI-2022-10762 Aliases CVE-2022-27882 GHSA-c83m-wj2v-88pf

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and…

LOW 37CWE-681Published 2022-03-25 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation.

Why it matters now

EPSS 0.01907 79th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:openbsd:openbsd:6.9:::::::*	6.9	Vulnerable	OpenBSD
cpe:2.3:o:openbsd:openbsd:7.0:::::::*	7.0	Vulnerable	OpenBSD

cpe:2.3:o:openbsd:openbsd:6.9:*:*:*:*:*:*:* Versions 6.9 Vulnerable ·OpenBSD
cpe:2.3:o:openbsd:openbsd:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·OpenBSD

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-27882
2026-10-03 Alias added: GHSA-c83m-wj2v-88pf

References

Exploit 1

https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html

Patch 2

Advisory 1

https://security.netapp.com/advisory/ntap-20220506-0005/

TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
TI-2007-05153 Stack-based buffer overflow in the cons_options function in options.c in dhcpd in OpenBSD… CVSS 2.0HIGH 7.2
TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
TI-2026-40218 sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication… CVSS 3.1HIGH 8.3
TI-2004-00444 Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31… CVSS 2.0HIGH 10.0

See all 200 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences