Answer in brief
CVE-2026-53002 records a Critical severity (CVSS 9.8) vulnerability in netfilter: conntrack: remove sprintf usage. 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-2026-53002 records a Critical severity (CVSS 9.8) vulnerability in netfilter: conntrack: remove sprintf usage. 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 9.8. 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 | >=9fafcd7b203229c3f3893a475741afc27e276306 <2f793ba78470a99f40389b7dc60a81d9f5ad3956 || >=9fafcd7b203229c3f3893a475741afc27e276306 <6bbf829b4c1b44c941c47dd0d710f1393258f3d5 || >=9fafcd7b203229c3f3893a475741afc27e276306 <ab64e61c9323fa6de21bd20da1ddb29a0fb65d34 || >=9fafcd7b203229c3f3893a475741afc27e276306 <1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e || >=9fafcd7b203229c3f3893a475741afc27e276306 <a8e0a32a23d3f34862af3b4da792ecb3a891a9a3 || >=9fafcd7b203229c3f3893a475741afc27e276306 <8e3be0d12615a173fe260cd42753ca7a001acbf2 || >=9fafcd7b203229c3f3893a475741afc27e276306 <c08ff52e44945e6ef4ce0790f49ea761b060c45b || >=9fafcd7b203229c3f3893a475741afc27e276306 <6e7066bdb481a87fe88c4fa563e348c03b2d373d | 2f793ba78470a99f40389b7dc60a81d9f5ad3956, 6bbf829b4c1b44c941c47dd0d710f1393258f3d5, ab64e61c9323fa6de21bd20da1ddb29a0fb65d34, 1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e, a8e0a32a23d3f34862af3b4da792ecb3a891a9a3, 8e3be0d12615a173fe260cd42753ca7a001acbf2, c08ff52e44945e6ef4ce0790f49ea761b060c45b, 6e7066bdb481a87fe88c4fa563e348c03b2d373d |
| Linux/Linuxgeneric | 2.6.20 | 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: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..]
Quoted source text, attributed separately from HOL analysis.
CVSS is 9.8. 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 | >=9fafcd7b203229c3f3893a475741afc27e276306 <2f793ba78470a99f40389b7dc60a81d9f5ad3956 || >=9fafcd7b203229c3f3893a475741afc27e276306 <6bbf829b4c1b44c941c47dd0d710f1393258f3d5 || >=9fafcd7b203229c3f3893a475741afc27e276306 <ab64e61c9323fa6de21bd20da1ddb29a0fb65d34 || >=9fafcd7b203229c3f3893a475741afc27e276306 <1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e || >=9fafcd7b203229c3f3893a475741afc27e276306 <a8e0a32a23d3f34862af3b4da792ecb3a891a9a3 || >=9fafcd7b203229c3f3893a475741afc27e276306 <8e3be0d12615a173fe260cd42753ca7a001acbf2 || >=9fafcd7b203229c3f3893a475741afc27e276306 <c08ff52e44945e6ef4ce0790f49ea761b060c45b || >=9fafcd7b203229c3f3893a475741afc27e276306 <6e7066bdb481a87fe88c4fa563e348c03b2d373d | 2f793ba78470a99f40389b7dc60a81d9f5ad3956, 6bbf829b4c1b44c941c47dd0d710f1393258f3d5, ab64e61c9323fa6de21bd20da1ddb29a0fb65d34, 1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e, a8e0a32a23d3f34862af3b4da792ecb3a891a9a3, 8e3be0d12615a173fe260cd42753ca7a001acbf2, c08ff52e44945e6ef4ce0790f49ea761b060c45b, 6e7066bdb481a87fe88c4fa563e348c03b2d373d |
| Linux/Linuxgeneric | 2.6.20 | 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: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..]
Quoted source text, attributed separately from HOL analysis.