Buffer Overflow in Dhcp6relay in Software for Open Networking in the Cloud (SONiC)
Priority LOW 38CWE-120Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
There is a vulnerability in DHCPv6 packet parsing code that could be explored by remote attacker to craft a packet that could cause buffer overflow in a memcpy call, leading to out-of-bounds memory write that would cause dhcp6relay to crash. Dhcp6relay is a critical process and could cause dhcp relay docker to shutdown. Discovered by Eugene Lim of GovTech Singapore.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01255 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-0324
- 2026-10-03 Alias added: GHSA-cq4f-m4r6-7827
References
More backstage Software For Open Networking In The Cloud vulnerabilities
- TI-2024-14178 Software for Open Networking in the Cloud (SONiC) Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
Sources
- CVE-2022-0324 · CVE Program
- CVE-2022-0324 · NVD
- FIRST EPSS
- GHSA-cq4f-m4r6-7827 · GitHub Advisory Database · CC BY 4.0
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