CVE-2017-17427
Radware Alteon devices with a firmware version between 31.0.0.0-31.0.3.0 are vulnerable to an adaptive-chosen ciphertext attack ("Bleichenbacher attack").
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
Radware Alteon devices with a firmware version between 31.0.0.0-31.0.3.0 are vulnerable to an adaptive-chosen ciphertext attack ("Bleichenbacher attack"). This allows an attacker to decrypt observed traffic that has been encrypted with the RSA cipher and to perform other private key operations.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 15.58% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- radware/alteon firmware
- Source
- cve@mitre.org
EPSS moved from 14.3% on 21 September 2026 to 15.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/102199Third Party Advisory, VDB Entry
- https://robotattack.org/Technical Description
- https://support.radware.com/app/answers/answer_view/a_id/1010361/~/cve-2017-17427-adaptive-chosen-ciphertext-attack-vulnerabilityMitigation, Vendor Advisory
- https://www.kb.cert.org/vuls/id/144389Third Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/102199Third Party Advisory, VDB Entry
- https://robotattack.org/Technical Description
- https://support.radware.com/app/answers/answer_view/a_id/1010361/~/cve-2017-17427-adaptive-chosen-ciphertext-attack-vulnerabilityMitigation, Vendor Advisory
- https://www.kb.cert.org/vuls/id/144389Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.