CVE-2026-46433EPSS p13.0%
CVE-2026-46433CVE-2026-46433
lldpd_project / lldpd
Description
lldpd is an implementation of IEEE 802.1ab (LLDP). Prior to version 1.0.22, lldpd_decode() in src/daemon/lldpd.c strips 802.1Q VLAN tags from received Ethernet frames by calling memmove() to shift the frame payload 4 bytes left. The third argument (byte count) is s - 2 * ETHER_ADDR_LEN but should be s - 2 * ETHER_ADDR_LEN - 4, causing a 4-byte heap buffer over-read past the malloc(h_mtu) allocation when the received frame size equals the interface MTU. This issue has been patched in version 1.0.22.
Scoring
| CVSS | 6.5 () |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 0.22% probability of exploitation · percentile 13.0% · 2026-06-19T12:03:05Z |
| Last modified | 2026-06-11 |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.