Answer in brief
CVE-2026-74625 records a High severity (CVSS 7.5) vulnerability in netfilter: bridge: release template ct on non-IP path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3c171f496ef57774f8e5d509923372549734877f <fc90df37540627d092af770215fb4b7befe9409b || >=3c171f496ef57774f8e5d509923372549734877f <daa6e070f8e1e7a4dddec8b64ca37663f8cda917 || >=3c171f496ef57774f8e5d509923372549734877f <bd7b16494dacf87e9336a1dcfdada83b9e40edd6 || >=3c171f496ef57774f8e5d509923372549734877f <6ea88401e10e04e0b3bb7a7adea54932fb60b93b || >=3c171f496ef57774f8e5d509923372549734877f <46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd || >=3c171f496ef57774f8e5d509923372549734877f <c58d34fe8b7e47bb0b350a7625023b1261342be5 || >=3c171f496ef57774f8e5d509923372549734877f <7cff440d702616022769f2643168d7f9820547a0 || >=3c171f496ef57774f8e5d509923372549734877f <d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f | fc90df37540627d092af770215fb4b7befe9409b, daa6e070f8e1e7a4dddec8b64ca37663f8cda917, bd7b16494dacf87e9336a1dcfdada83b9e40edd6, 6ea88401e10e04e0b3bb7a7adea54932fb60b93b, 46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd, c58d34fe8b7e47bb0b350a7625023b1261342be5, 7cff440d702616022769f2643168d7f9820547a0, d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f |
| Linux/Linuxgeneric | 5.3 | Not reported |
Published upstream
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 22, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: release template ct on non-IP path A bridge nftables ct zone set rule can attach a conntrack template to an skb before nf_ct_bridge_pre() sees it. For non-IPv4 and non-IPv6 EtherTypes, nf_ct_bridge_pre() currently overwrites skb->_nfct with IP_CT_UNTRACKED without releasing the existing template reference. That makes the per-cpu template, and any temporary templates allocated for concurrent use, unreachable and leaks memory until the host runs out of slab. Reset the skb conntrack state before marking the frame untracked so the existing template reference is dropped on the non-IP path.
Quoted source text, attributed separately from HOL analysis.