CVE-2024-40324: E-Staff · A CRLF Injection
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
AI-suggested
To mitigate CVE-2024-40324, organizations should implement strict input validation to reject any user input containing CR (\r) and LF (\n) characters before processing or including it in HTTP headers. Employ output encoding techniques to neutralize any potentially malicious characters in HTTP responses. If vendor patches become available, apply them immediately to remediate the vulnerability at the source. In the interim, consider deploying web application firewalls (WAFs) configured to detect and block HTTP response splitting attempts. Conduct thorough code reviews and security testing focusing on input handling in HTTP header generation. Limit the exposure of vulnerable interfaces by restricting access through network segmentation or VPNs. Monitor HTTP traffic for unusual header patterns or multiple response anomalies that may indicate exploitation attempts. Educate development and security teams about the risks of CRLF injection and secure coding practices to prevent similar vulnerabilities in the future.
Description
A CRLF injection vulnerability in E-Staff v5.1 allows attackers to insert Carriage Return (CR) and Line Feed (LF) characters into input fields, leading to HTTP response splitting and header manipulation.