CVE-2017-17427

Alteon Firmware vulnerability

CVSS

5.9

EPSS

15.6%

EPSS pct

96th

Exploited

No known

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.

Affected vendor

Radware

Affected product

Alteon Firmware

CVSS vector

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

Weakness type (CWE)

CWE-203

Published

2017-12-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 15.6% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2017-17427

Confirm whether Radware Alteon Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-17427.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-17427

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-17427 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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