CVE-2026-43452 - Vulnerability Analysis
HighCVSS: 8.2Last Updated: May 11, 2026
Linux Kernel netfilter - Out of Bounds Read
Overview
Linux kernel netfilter x_tables contains a buffer over-read caused by improper bounds checking in option walkers, letting attackers potentially cause denial of service, exploit requires crafted network packets.
Severity & Score
Impact
Attackers can cause denial of service by triggering out-of-bounds reads in netfilter option processing.
Mitigation
Update to the latest Linux kernel version with the fix.
References
- https://git.kernel.org/stable/c/c2a445367a496a3c25dbc940c10c8bd1cfd4c14a
- https://git.kernel.org/stable/c/c39f84e4be1be63fc60ca7141ea7b76edcea5907
- https://git.kernel.org/stable/c/cfe770220ac2dbd3e104c6b45094037455da81d4
- https://git.kernel.org/stable/c/d04800323336eebf441d153f43234eac9b833d36
- https://git.kernel.org/stable/c/5b18b8b35c7cded2d17b2b2604c9b0694ff48d1c
- https://git.kernel.org/stable/c/9b94f0e42ed248eb31929da84ed9f5310d7ff540
- https://git.kernel.org/stable/c/ae1e1267650638136b84c23f2b31250f0ccb6823
- https://git.kernel.org/stable/c/bc18551c6169eac5ed813778d3e3e484002dbbe5
Social Media Activity(2 posts)
š CVE-2026-43452 - High (8.2) In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += op[i + 1] ? : ... š https://www.thehackerwire.com/vulnerability/CVE-2026-43452/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack
View original post
š CVE-2026-43452 - High (8.2) In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += op[i + 1] ? : ... š https://www.thehackerwire.com/vulnerability/CVE-2026-43452/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack
View original postRelated Resources
Details
- CVE ID
- CVE-2026-43452
- Severity
- High
- CVSS Score
- 8.2
- Type
- out_of_bounds_rw
- Status
- new
- EPSS
- 5.2%
- Social Posts
- 2
CVSS Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H