Answer in brief
CVE-2026-52920 records a High severity (CVSS 8.3) vulnerability in netfilter: xt_policy: fix strict mode inbound policy matching. 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.
Answer in brief
CVE-2026-52920 records a High severity (CVSS 8.3) vulnerability in netfilter: xt_policy: fix strict mode inbound policy matching. 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 8.3. 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 | >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <eb323f7b82d2e2f638de0cc2a177803eb20e0707 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <fc1c518bb1f054831ecabb32da9b8e1dff9699c6 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <f98b7f85e04b40e28b08c461ded0cc79f14f5509 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <82664d0f1ba25e4f9a71994954abae24c60f4067 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <938867e870fb5471bb16f442aeac81326e05bf65 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <392cc1d8408b5665215c1e9290bbf0f92339b043 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <4b2b4d7d4e203c92db8966b163edfacb1f0e1e29 | eb323f7b82d2e2f638de0cc2a177803eb20e0707, fc1c518bb1f054831ecabb32da9b8e1dff9699c6, f98b7f85e04b40e28b08c461ded0cc79f14f5509, 82664d0f1ba25e4f9a71994954abae24c60f4067, b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9, 938867e870fb5471bb16f442aeac81326e05bf65, 392cc1d8408b5665215c1e9290bbf0f92339b043, 4b2b4d7d4e203c92db8966b163edfacb1f0e1e29 |
| Linux/Linuxgeneric | 2.6.17 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_policy: fix strict mode inbound policy matching match_policy_in() walks sec_path entries from the last transform to the first one, but strict policy matching needs to consume info->pol[] in the same forward order as the rule layout. Derive the strict-match policy position from the number of transforms already consumed so that multi-element inbound rules are matched consistently.
Quoted source text, attributed separately from HOL analysis.
CVSS is 8.3. 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 | >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <eb323f7b82d2e2f638de0cc2a177803eb20e0707 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <fc1c518bb1f054831ecabb32da9b8e1dff9699c6 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <f98b7f85e04b40e28b08c461ded0cc79f14f5509 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <82664d0f1ba25e4f9a71994954abae24c60f4067 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <938867e870fb5471bb16f442aeac81326e05bf65 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <392cc1d8408b5665215c1e9290bbf0f92339b043 || >=c4b885139203d37f76662c37ae645fe8e0f4e4e5 <4b2b4d7d4e203c92db8966b163edfacb1f0e1e29 | eb323f7b82d2e2f638de0cc2a177803eb20e0707, fc1c518bb1f054831ecabb32da9b8e1dff9699c6, f98b7f85e04b40e28b08c461ded0cc79f14f5509, 82664d0f1ba25e4f9a71994954abae24c60f4067, b130a6eefa02bd4d475f2f059da8bcfb3e7d18d9, 938867e870fb5471bb16f442aeac81326e05bf65, 392cc1d8408b5665215c1e9290bbf0f92339b043, 4b2b4d7d4e203c92db8966b163edfacb1f0e1e29 |
| Linux/Linuxgeneric | 2.6.17 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_policy: fix strict mode inbound policy matching match_policy_in() walks sec_path entries from the last transform to the first one, but strict policy matching needs to consume info->pol[] in the same forward order as the rule layout. Derive the strict-match policy position from the number of transforms already consumed so that multi-element inbound rules are matched consistently.
Quoted source text, attributed separately from HOL analysis.