Answer in brief
CVE-2024-36903 records a Medium severity (CVSS 5.5) vulnerability in ipv6: Fix potential uninit-value access in __ip6_make_skb(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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-2024-36903 records a Medium severity (CVSS 5.5) vulnerability in ipv6: Fix potential uninit-value access in __ip6_make_skb(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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 5.5. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=605b056d63302ae84eb136e88d4df49124bd5e0d <59d74c843ebf46264c7903726cf6f2673a93b07a || >=d65ff2fe877c471aa6e79efa7bd8ff66e147c317 <40e5444a3ac315b60e94d82226b73cd82145d09e || >=2c9cefc142c1dc2759e19a92d3b2b3715e985beb <a05c1ede50e9656f0752e523c7b54f3a3489e9a8 || >=ea30388baebcce37fd594d425a65037ca35e59e8 <68c8ba16ab712eb709c6bab80ff151079d11d97a || >=ea30388baebcce37fd594d425a65037ca35e59e8 <2367bf254f3a27ecc6e229afd7a8b0a1395f7be3 || >=ea30388baebcce37fd594d425a65037ca35e59e8 <4e13d3a9c25b7080f8a619f961e943fe08c2672c || 165370522cc48127da564a08584a7391e6341908 || f394f690a30a5ec0413c62777a058eaf3d6e10d5 || 0cf600ca1bdf1d52df977516ee6cee0cadb1f6b1 || 02ed5700f40445af02d1c97db25ffc2d04971d9f || >=5.10.178 <5.10.248 || >=5.15.107 <5.15.198 || >=6.1.24 <6.1.140 || >=4.14.313 <4.15 || >=4.19.281 <4.20 || >=5.4.241 <5.5 || >=6.2.11 <6.3 | 59d74c843ebf46264c7903726cf6f2673a93b07a, 40e5444a3ac315b60e94d82226b73cd82145d09e, a05c1ede50e9656f0752e523c7b54f3a3489e9a8, 68c8ba16ab712eb709c6bab80ff151079d11d97a, 2367bf254f3a27ecc6e229afd7a8b0a1395f7be3, 4e13d3a9c25b7080f8a619f961e943fe08c2672c, 5.10.248, 5.15.198, 6.1.140, 4.15, 4.20, 5.5, 6.3 |
| Linux/Linuxgeneric | 6.3 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
May 30, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix potential uninit-value access in __ip6_make_skb() As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access.
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=605b056d63302ae84eb136e88d4df49124bd5e0d <59d74c843ebf46264c7903726cf6f2673a93b07a || >=d65ff2fe877c471aa6e79efa7bd8ff66e147c317 <40e5444a3ac315b60e94d82226b73cd82145d09e || >=2c9cefc142c1dc2759e19a92d3b2b3715e985beb <a05c1ede50e9656f0752e523c7b54f3a3489e9a8 || >=ea30388baebcce37fd594d425a65037ca35e59e8 <68c8ba16ab712eb709c6bab80ff151079d11d97a || >=ea30388baebcce37fd594d425a65037ca35e59e8 <2367bf254f3a27ecc6e229afd7a8b0a1395f7be3 || >=ea30388baebcce37fd594d425a65037ca35e59e8 <4e13d3a9c25b7080f8a619f961e943fe08c2672c || 165370522cc48127da564a08584a7391e6341908 || f394f690a30a5ec0413c62777a058eaf3d6e10d5 || 0cf600ca1bdf1d52df977516ee6cee0cadb1f6b1 || 02ed5700f40445af02d1c97db25ffc2d04971d9f || >=5.10.178 <5.10.248 || >=5.15.107 <5.15.198 || >=6.1.24 <6.1.140 || >=4.14.313 <4.15 || >=4.19.281 <4.20 || >=5.4.241 <5.5 || >=6.2.11 <6.3 | 59d74c843ebf46264c7903726cf6f2673a93b07a, 40e5444a3ac315b60e94d82226b73cd82145d09e, a05c1ede50e9656f0752e523c7b54f3a3489e9a8, 68c8ba16ab712eb709c6bab80ff151079d11d97a, 2367bf254f3a27ecc6e229afd7a8b0a1395f7be3, 4e13d3a9c25b7080f8a619f961e943fe08c2672c, 5.10.248, 5.15.198, 6.1.140, 4.15, 4.20, 5.5, 6.3 |
| Linux/Linuxgeneric | 6.3 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
May 30, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix potential uninit-value access in __ip6_make_skb() As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access.
Quoted source text, attributed separately from HOL analysis.