02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: wolfSSLwolfSSL: out-of-bounds read (DoS) in ALPN parsing due to incomplete validation
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.- EPSS probability
- 0.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 17.4% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
SCHEMA: 5.2
- Published
- 2026-03-19 20:20Z5 MO AGO
- Last updated
- 2026-03-21 03:33Z5 MO AGO
- Reserved
- 2026-03-04
- Assigning CNA
- wolfSSL
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 2d33df14174e5d24e24f86d6242107782ecf73afe627403c558b26b18a6bee2d
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
wolfSSLwolfSSL0 to < 5.9.0ALPN-enabled builds (HAVE_ALPN / --enable-alpn) SRC: CNA
apply the fix in wolfssl/wolfssl#9859 (or upgrade to a release that includes it).