Answer in brief
CVE-2025-38724 records a Unknown severity vulnerability in nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 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-2025-38724 records a Unknown severity vulnerability in nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 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.
A CVSS score is not reported in the current record. 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 CN 4100 (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <3f252a73e81aa01660cb426735eab932e6182e8d || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <d35ac850410966010e92f401f4e21868a9ea4d8b || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <f3aac6cf390d8b80e1d82975faf4ac61175519c0 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <22f45cedf281e6171817c8a3432c44d788c550e1 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <d71abd1ae4e0413707cd42b10c24a11d1aa71772 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <74ad36ed60df561a303a19ecef400c7096b20306 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <36e83eda90e0e4ac52f259f775b40b2841f8a0a3 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <571a5e46c71490285d2d8c06f6b5a7cbf6c7edd1 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <908e4ead7f757504d8b345452730636e298cbf68 | 3f252a73e81aa01660cb426735eab932e6182e8d, d35ac850410966010e92f401f4e21868a9ea4d8b, f3aac6cf390d8b80e1d82975faf4ac61175519c0, 22f45cedf281e6171817c8a3432c44d788c550e1, d71abd1ae4e0413707cd42b10c24a11d1aa71772, 74ad36ed60df561a303a19ecef400c7096b20306, 36e83eda90e0e4ac52f259f775b40b2841f8a0a3, 571a5e46c71490285d2d8c06f6b5a7cbf6c7edd1, 908e4ead7f757504d8b345452730636e298cbf68 |
| Linux/Linuxgeneric | 3.17 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Sep 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() Lei Lu recently reported that nfsd4_setclientid_confirm() did not check the return value from get_client_locked(). a SETCLIENTID_CONFIRM could race with a confirmed client expiring and fail to get a reference. That could later lead to a UAF. Fix this by getting a reference early in the case where there is an extant confirmed client. If that fails then treat it as if there were no confirmed client found at all. In the case where the unconfirmed client is expiring, just fail and return the result from get_client_locked().
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. 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 CN 4100 (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <3f252a73e81aa01660cb426735eab932e6182e8d || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <d35ac850410966010e92f401f4e21868a9ea4d8b || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <f3aac6cf390d8b80e1d82975faf4ac61175519c0 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <22f45cedf281e6171817c8a3432c44d788c550e1 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <d71abd1ae4e0413707cd42b10c24a11d1aa71772 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <74ad36ed60df561a303a19ecef400c7096b20306 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <36e83eda90e0e4ac52f259f775b40b2841f8a0a3 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <571a5e46c71490285d2d8c06f6b5a7cbf6c7edd1 || >=d20c11d86d8f821a64eac7d6c8f296f06d935f4f <908e4ead7f757504d8b345452730636e298cbf68 | 3f252a73e81aa01660cb426735eab932e6182e8d, d35ac850410966010e92f401f4e21868a9ea4d8b, f3aac6cf390d8b80e1d82975faf4ac61175519c0, 22f45cedf281e6171817c8a3432c44d788c550e1, d71abd1ae4e0413707cd42b10c24a11d1aa71772, 74ad36ed60df561a303a19ecef400c7096b20306, 36e83eda90e0e4ac52f259f775b40b2841f8a0a3, 571a5e46c71490285d2d8c06f6b5a7cbf6c7edd1, 908e4ead7f757504d8b345452730636e298cbf68 |
| Linux/Linuxgeneric | 3.17 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Sep 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() Lei Lu recently reported that nfsd4_setclientid_confirm() did not check the return value from get_client_locked(). a SETCLIENTID_CONFIRM could race with a confirmed client expiring and fail to get a reference. That could later lead to a UAF. Fix this by getting a reference early in the case where there is an extant confirmed client. If that fails then treat it as if there were no confirmed client found at all. In the case where the unconfirmed client is expiring, just fail and return the result from get_client_locked().
Quoted source text, attributed separately from HOL analysis.