CVE-2026-25832
LOWCVSS 3.7/10EPSS 0.22%
Last modified
CVE-2026-25832 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. In Mbed TLS 3.6.x before 3.6.7 and 4.1.x before 4.1.2, the TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised group.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
In Mbed TLS 3.6.x before 3.6.7 and 4.1.x before 4.1.2, the TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised group.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| TrustedFirmware | Mbed TLS | >= 3.5.0, < 3.6.7; >= 4.0.0, < 4.1.2 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-25832?
In Mbed TLS 3.6.x before 3.6.7 and 4.1.x before 4.1.2, the TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised group.
How severe is CVE-2026-25832?
CVE-2026-25832 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-25832?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-25823HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ w…9.8
- CVE-2026-25825An issue was discovered in Keyfactor SignServer before 7.6.0…2.7
- CVE-2026-25826An issue was discovered in Keyfactor SignServer before 7.6.0…4.9
- CVE-2026-25827An issue was discovered in Keyfactor SignServer before 7.6.0…2.3
- CVE-2026-25828grub-btrfs through 2026-01-31 (on Arch Linux and derivative …5.4
- CVE-2026-2583The Blocksy theme for WordPress is vulnerable to Stored Cros…6.4
- CVE-2026-25833Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffe…7.5
- CVE-2026-25834Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downg…6.5
- CVE-2026-25835Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse …7.7
- CVE-2026-25836An improper neutralization of special elements used in an os…7.2
- CVE-2026-25837Rejected reason: Not used
- CVE-2026-25838Rejected reason: Not used
Are you affected by CVE-2026-25832?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST