CVE-2026-52967
Status: AnalyzedHigh (8.1)—
In the Linux kernel, the following vulnerability has been resolved:
smb/client: fix possible infinite loop and oob read in symlink_data()
On 32-bit architectures, the infinite loop is as follows:
On 32-bit architectures, the out-of-bounds read is as follows:
Technical details traces, logs and code from the original report
len = p->ErrorDataLength == 0xfffffff8 u8 *next = p->ErrorContextData + len next == p len = p->ErrorDataLength == 0xfffffff0 u8 *next = p->ErrorContextData + len next == (u8 *)p - 8
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- Base score: 8.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.54%
- Percentile among all scored CVEs: 43
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution75 % - Primary impact
T1059Command and Scripting Interpreterexecution60 % - Secondary impact
T1499.004Application or System Exploitationimpact65 %
Vector CVSS con UI:R indica ejecución en cliente (T1203). OOB read en kernel permite lectura de memoria/DoS; el texto sugiere código vulnerable en symlink parsing que requiere interacción. La pista apunta T1059 pero el contexto de loop infinito y desbordamiento en kernel es más consistente con negac
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
CWEs
- CWE-125
References
- https://git.kernel.org/stable/c/1b9331b16b0ed9414dcf7583d8134bdfeb117aae
- https://git.kernel.org/stable/c/1cfa2d59f669db28d6292d10ff87ca6837c781b0
- https://git.kernel.org/stable/c/7d9a7f1f96cd617ee9e75bb22217c709038e26b8
- https://git.kernel.org/stable/c/97a05b0ae9ea5ec052be2eef0f9cc7ce03501bbb
- https://git.kernel.org/stable/c/b41598bf54b3fe528994e573df6008f8f4d0a4f4
- https://git.kernel.org/stable/c/cd4b9b662f0fb9aa97ee6bf9034eca76fc6cab23
Raw JSON (NVD)
Show
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}
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