Technology · SonicWall
SonicWall SonicOS vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 20 vulnerabilities in SonicWall SonicOS: 7 in the last 7 days and 7 in the last 90 days, 5 of them critical and 4 exploited in the wild. The most recent, CVE-2026-82308, was published on 6 November 2026. 7 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0, 1 exploited in the wild against 0.
- Last 7 days
- 7
- Last 90 days
- 7
- Critical, all time
- 5
- Exploited in the wild
- 4
About SonicWall SonicOS
Operating system for SonicWall network security appliances.
Latest SonicWall SonicOS vulnerabilities
- CVE-2026-82308: SonicWall SonicOS heap-based buffer overflow in SSL-VPNinfo
- CVE-2026-77709: SonicWall SonicOS heap buffer overflow in TACACS+ clientinfo
- CVE-2026-77708: SonicWall SonicOS stack-based buffer overflow in TACACS+ clientinfo
- CVE-2026-19868: SonicWall SonicOS SSLVPN SAML authentication bypasscriticalexploited in the wild
- CVE-2026-19703: SonicWall SonicOS weak password hashinginfo
- CVE-2026-107155: SonicOS permissive cross-domain policy in management interfacehighCVSS 8.8
- CVE-2026-107154: SonicWall SonicOS session validation bypass in management interfacehighCVSS 8.8
- CVE-2026-0206: A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.mediumCVSS 4.9EPSS 0.5%
- CVE-2026-0205: A post-authentication Path Traversal vulnerability in SonicOS allows an attacker to interact with usually restricted…mediumCVSS 6.8EPSS 0.4%
- CVE-2026-0204: A vulnerability in the access control mechanism of SonicOS may allow certain management interface functions to be…highCVSS 8EPSS 0.4%
- CVE-2026-3439: A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remote…mediumCVSS 4.9EPSS 0.3%
- CVE-2026-0402: A post-authentication Out-of-bounds Read vulnerability in SonicOS allows a remote attacker to crash a firewall.mediumCVSS 4.9EPSS 0.4%
- CVE-2026-0401: A post-authentication NULL Pointer Dereference vulnerability in SonicOS allows a remote attacker to crash a firewall.mediumCVSS 4.9EPSS 0.4%
- CVE-2026-0400: A post-authentication Format String vulnerability in SonicOS allows a remote attacker to crash a firewall.mediumCVSS 4.9EPSS 0.5%
- CVE-2026-0399: Multiple post-authentication stack-based buffer overflow vulnerabilities in the SonicOS management interface due to…mediumCVSS 4.9EPSS 0.4%
- CVE-2025-40601: A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to…highCVSS 7.5EPSS 1.2%
- CVE-2024-53704: SonicWall SonicOS SSLVPN Improper Authentication Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2024-40766: SonicWall SonicOS Improper Access Control Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2024-3596: RADIUS Protocol MD5 collision forgery attack (Blast-RADIUS)criticalCVSS 9
- CVE-2020-5135: SonicWall SonicOS Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 9.8
Most severe SonicWall SonicOS vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2024-53704: SonicWall SonicOS SSLVPN Improper Authentication Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2024-40766: SonicWall SonicOS Improper Access Control Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2020-5135: SonicWall SonicOS Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2026-19868: SonicWall SonicOS SSLVPN SAML authentication bypasscriticalexploited in the wild
- CVE-2024-3596: RADIUS Protocol MD5 collision forgery attack (Blast-RADIUS)criticalCVSS 9
- CVE-2026-107155: SonicOS permissive cross-domain policy in management interfacehighCVSS 8.8
- CVE-2026-107154: SonicWall SonicOS session validation bypass in management interfacehighCVSS 8.8
- CVE-2026-0204: A vulnerability in the access control mechanism of SonicOS may allow certain management interface functions to be…highCVSS 8EPSS 0.4%
- CVE-2025-40601: A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to…highCVSS 7.5EPSS 1.2%
- CVE-2026-0205: A post-authentication Path Traversal vulnerability in SonicOS allows an attacker to interact with usually restricted…mediumCVSS 6.8EPSS 0.4%
Vulnerabilities per week
7 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0, 1 exploited in the wild against 0. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 7 | 1 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many SonicWall SonicOS vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/sonicos)<a href="https://junglewise.ai/threats/technologies/sonicos"><img src="https://junglewise.ai/threats/technologies/sonicos/badge.svg" alt="SonicWall SonicOS vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/sonicos.json, and this page as text at https://junglewise.ai/threats/technologies/sonicos.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "SonicWall SonicOS vulnerabilities", https://junglewise.ai/threats/technologies/sonicos, 10 November 2026.