CVE-2025-66485: IBM Aspera Shares · Improper Neutralization of HTTP Headers for Scripting Syntax
Affects IBM Aspera SharesSource CVE Database V5
Not known to be exploited · CVSS 5.4 Medium.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 1 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| IBMAspera Shares | Affected
| Fixed in– |
CPE configurations (2)
cpe:2.3:a:ibm:aspera_shares:1.9.9:*:*:*:*:*:*:*cpe:2.3:a:ibm:aspera_shares:1.11.0:*:*:*:*:*:*:*
AI-suggested
Until a fix is available, consider implementing input validation or filtering on HOST headers at the network or application level if feasible.
Description
IBM Aspera Shares versions 1.9.9 through 1.11.0 contain a vulnerability due to improper validation of HOST headers, leading to HTTP header injection. This flaw can enable attackers to perform attacks such as cross-site scripting, cache poisoning, or session hijacking. The vulnerability has a medium severity with a CVSS score of 5.4. No official patch or vendor advisory is provided in the input data, and no known exploits are reported in the wild.