How severe is CVE-2024-34055?

CVE-2024-34055 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-34055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-34055?

CVE-2024-34055 primarily affects Cyrusimap Cyrus Imap. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-34055?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-34055 have an EU (EUVD) identifier?

Yes. CVE-2024-34055 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35154.

When was CVE-2024-34055 published?

CVE-2024-34055 was published on 2024-06-05 and last updated on 2026-06-17.

CVE-2024-34055

CVE-2024-34055 is a medium-severity vulnerability in Cyrusimap Cyrus Imap with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-35154
Weakness: CWE-770
Affected product: Cyrusimap Cyrus Imap
Published: 2024-06-05
Last modified: 2026-06-17

Description

Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many LITERALs in a single command.

Frequently asked questions

What is CVE-2024-34055?: Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many LITERALs in a single command.
How severe is CVE-2024-34055?: CVE-2024-34055 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-34055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-34055?: CVE-2024-34055 primarily affects Cyrusimap Cyrus Imap. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-34055?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-34055 have an EU (EUVD) identifier?: Yes. CVE-2024-34055 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35154.
When was CVE-2024-34055 published?: CVE-2024-34055 was published on 2024-06-05 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:cyrusimap:cyrus_imap:*:*:*:*:*:*:*:*
cpe:2.3:a:cyrusimap:cyrus_imap:3.10.0:alpha0:*:*:*:*:*:*
cpe:2.3:a:cyrusimap:cyrus_imap:3.10.0:beta1:*:*:*:*:*:*
cpe:2.3:a:cyrusimap:cyrus_imap:3.10.0:beta2:*:*:*:*:*:*

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