CVE-2024-40324: A CRLF injection vulnerability in E-Staff v5.1 allows attackers to insert Carriage Return (CR) and Line Feed (

Routine

MEDIUM 5.4DOWNGRADE

CVE-2024-40324 is a medium-severity flaw (CVSS 5.4) affecting e-staff. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-74, CWE-93, CWE-113
Published	2024-07-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: datex-soft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-07-25 20:15 UTCPublished CVE record published
2026-06-17 07:45 UTCUpdated Record last modified

datex-soft e-staff DOWNGRADE

Affected: 5.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.1

1. Check installed version

apt-cache policy e-staff || rpm -q e-staff || e-staff --version

2. No fixed release: DOWNGRADE to a release before 5.1 (Debian / Ubuntu)

apt-cache madison e-staff sudo apt install e-staff=<VERSION_BEFORE_5.1> sudo apt-mark hold e-staff

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list e-staff sudo dnf downgrade e-staff-<VERSION_BEFORE_5.1> sudo dnf versionlock add e-staff

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-40324?

e-staff: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-40324 being exploited?

CVE-2024-40324 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-40324 affect?

CVE-2024-40324 affects e-staff. Severity is medium (CVSS 5.4). 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.

How urgent is CVE-2024-40324?

Priority 37/100. Public exploit reference

References

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