Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U H N H 7.1 .0028 20.3 —
AFFECTED Product Versions Fixed Linux 2bc780499aa33311ec0f3e42624dfaa7be0ade5e – — Linux 2.6.26 – 5.4.251
TIMELINE Sep 16 Reserved by Linux Sep 16 Published (CNA: Linux) Aug 4 RESCORED — CVE-2023-53333 (Linux). CVSS 8.2 → 7.1 (NVD).
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: dccp: copy entire header to stack buffer, not just basic one Eric Dumazet says: nf_conntrack_dccp_packet() has an unique: dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &_dh); And nothing more is 'pulled' from the packet, depending on the content. dh->dccph_doff, and/or dh->dccph_x ...) So dccp_ack_seq() is happily reading stuff past the _dh buffer. BUG: KASAN: stack-out-of-bounds in nf_conntrack_dccp_packet+0x1134/0x11c0 Read of size 4 at addr ffff000128f66e0c by task syz-executor.2/29371 [..] Fix this by increasing the stack buffer to also include room for the extra sequence numbers and all the known dccp packet type headers, then pull again after the initial validation of the basic header. While at it, mark packets invalid that lack 48bit sequence bit but where RFC says the type MUST use them. Compile tested only. v2: first skb_header_pointer() now needs to adjust the size to only pull the generic header. (Eric) Heads-up: I intend to remove dccp conntrack support later this year.
| Date | Event | Detail |
|---|---|---|
| September 16, 2025 | Reserved | Reserved by Linux |
| September 16, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2023-53333 (Linux). CVSS 8.2 → 7.1 (NVD). |
Authoritative record: CVE-2023-53333 at cve.org
Vendors: linux
Weaknesses: CWE-125
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-53333 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.