CVE-2026-43452
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
netfilter: x_tables: guard option walkers against 1-byte tail reads
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] ? : 1 can read op[i + 1] past the end of the option area. Add an explicit i == optlen - 1 check before dereferencing op[i + 1] in xt_tcpudp and xt_dccp option walkers.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | c2a445367a496a3c25dbc940c10c8bd1cfd4c14a | Unavailable | None listed |
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | ae1e1267650638136b84c23f2b31250f0ccb6823 | Unavailable | None listed |
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | c39f84e4be1be63fc60ca7141ea7b76edcea5907 | Unavailable | None listed |
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | 9b94f0e42ed248eb31929da84ed9f5310d7ff540 | Unavailable | None listed |
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | 5b18b8b35c7cded2d17b2b2604c9b0694ff48d1c | Unavailable | None listed |
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | bc18551c6169eac5ed813778d3e3e484002dbbe5 | Unavailable | None listed |
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | d04800323336eebf441d153f43234eac9b833d36 | Unavailable | None listed |
| 2e4e6a17af35be359cc8f1c924f8f198fbd478cc | affected | git | cfe770220ac2dbd3e104c6b45094037455da81d4 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.16 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.19 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.9 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |