CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2026-82308
High (7.5) in sonicwall sonicos. EPSS 0.6% estimated probability of exploitation activity in the next 30 days.
A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which could potentially enable a remote unauthenticated attacker to cause an application level denial of service.
Severity
- EPSS
- 0.6% estimated probability of exploitation activity in the next 30 days; 49th percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: yes · Technical impact: partial, assessed 2026-11-06. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-122 Heap-based Buffer Overflow
- Published
- Modified
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Explain CVE-2026-82308 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-82308?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-82308?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-82308 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| SonicWall SonicOS | 7.3.3-7015 and older versions |
| SonicWall SonicOS | 8.2.2-8015 and older versions |
Attack patterns (CAPEC)
- CAPEC-92 Forced Integer Overflow Likelihood: High · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.