Radware Alteon devices with a firmware version between 31.0.0.0-31.0.3.0 are vulnerable to an adaptive-chosen ciphertext attack ("Bleichenb…

published 2017-12-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8592

cvss: 5.9; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 15.6%; EPSS 15.6% chance of exploitation in 30 days, percentile 96%
public exploits: 1; Metasploit

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.

Timeline

2009-06-17 First public exploit (Metasploit auxiliary/scanner/ssl/bleichenbacher_oracle)
2017-12-13 Published

Exploit prediction

15.58% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Metasploit auxiliary/scanner/ssl/bleichenbacher_oracle Scanner for Bleichenbacher Oracle in RSA PKCS #1 v1.5 metasploit auxiliary, normal rank, 2009-06-17

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-203 Observable Discrepancy

References

support.radware.com /app/answers/answer_view/a_id/1010361/~/cve-2017-17427-adaptive-chosen-ciphertext-attack-vulnerability
mitigation, vendor-advisory
robotattack.org /
technical-description
securityfocus.com /bid/102199
vdb-entry, third-party-advisory
kb.cert.org /vuls/id/144389
third-party-advisory, us-government-resource

Sources

CVE List CVE-2017-17427
NVD CVE-2017-17427

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary