CVE-2023-52354: chasquid before 1.13 allows SMTP smuggling because LF-terminated lines are accepted.

Q: How do I fix CVE-2023-52354?

chasquid: upgrade to 1.13. Exact commands for each OS are on this page.

Q: Is CVE-2023-52354 being exploited?

CVE-2023-52354 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-52354 affect?

CVE-2023-52354 affects chasquid. Severity is high (CVSS 7.5). chasquid before 1.13 allows SMTP smuggling because LF-terminated lines are accepted.

Q: How urgent is CVE-2023-52354?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2023-52354 is a high-severity flaw (CVSS 7.5) affecting chasquid. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

chasquid before 1.13 allows SMTP smuggling because LF-terminated lines are accepted.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-444
Published	2024-01-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: blitiri

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

Am I affected?

Timeline

2024-01-22 06:15 UTCPublished CVE record published
2026-06-17 06:42 UTCUpdated Record last modified

blitiri chasquid UPGRADE

Affected: < 1.13

Fixed in: 1.13

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chasquid || rpm -q chasquid || chasquid --version

2. UPGRADE to 1.13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chasquid

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chasquid

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2023-52354?

chasquid: upgrade to 1.13. Exact commands for each OS are on this page.

Is CVE-2023-52354 being exploited?

CVE-2023-52354 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-2023-52354 affect?

CVE-2023-52354 affects chasquid. Severity is high (CVSS 7.5). chasquid before 1.13 allows SMTP smuggling because LF-terminated lines are accepted.

How urgent is CVE-2023-52354?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

References

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