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CVE-2017-17427

38
FAUCET Score

CVE-2017-17427 is an adaptive-chosen ciphertext attack (Bleichenbacher attack) affecting Radware Alteon devices running firmware versions 31.0.0.0 through 31.0.3.0. This vulnerability allows an attacker to decrypt RSA-encrypted traffic and perform private key operations. With a CVSS score of 5.9 (Medium) and an EPSS score indicating higher than 98% of all CVEs, the attack is network-based with high attack complexity but no user interaction required, leading to a high confidentiality impact. While not listed in CISA's KEV catalog, a Metasploit module exists for scanning this vulnerability, and it has garnered community discussion and media coverage, suggesting awareness and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 31.0.0.0, <= 31.0.3.0CPE matchmatch criteria
cpe:2.3:o:radware:alteon_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
15.58%
Probability of exploitation in next 30 days
EPSS Percentile
96.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: Scanner for Bleichenbacher Oracle in RSA PKCS #1 v1.5 · Jun 17, 2009
This CVE's current EPSS score of 0.1558 is in the 97th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

robotattack.org
Technical Description
support.radware.com / app/answers/answer_view/a_id/1010361/~/cve-2017-17427-adaptive-chosen-ciphertext-attack-vulnerability
MitigationVendor Advisory
kb.cert.org / vuls/id/144389
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/102199
Third Party AdvisoryVDB Entry