How severe is CVE-2013-5571?

CVE-2013-5571 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2013-5571 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5571?

CVE-2013-5571 affects Hmailserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-5571?

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

When was CVE-2013-5571 published?

CVE-2013-5571 was published on 2020-01-07 and last updated on 2026-06-16.

CVE-2013-5571

CVE-2013-5571 is a medium-severity vulnerability in Hmailserver with a CVSS 3.x base score of 5.9. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 2.6
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Hmailserver
Published: 2020-01-07
Last modified: 2026-06-16

Description

HMailServer 5.3.x and prior: Memory Corruption which could cause DOS

Frequently asked questions

What is CVE-2013-5571?: HMailServer 5.3.x and prior: Memory Corruption which could cause DOS
How severe is CVE-2013-5571?: CVE-2013-5571 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2013-5571 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-5571?: CVE-2013-5571 affects Hmailserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-5571?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-5571 published?: CVE-2013-5571 was published on 2020-01-07 and last updated on 2026-06-16.

References

http://www.securiteam.com/securitynews/5QP3O0UAKA.html

Affected products (1)

cpe:2.3:a:hmailserver:hmailserver:*:*:*:*:*:*:*:*

More vulnerabilities in Hmailserver

CVE-2025-52372 — Medium (CVSS 5.1): An issue in hMailServer v.5.8.6 allows a local attacker to obtain sensitive information via the…
CVE-2025-52374 — Medium (CVSS 4.6): Use of hardcoded cryptographic key in Encryption.cs in hMailServer 5.8.6 and 5.6.9-beta allows attacker to decrypt…
CVE-2025-52373 — Medium (CVSS 4.6): Use of hardcoded cryptographic key in BlowFish.cpp in hMailServer 5.8.6 and 5.6.9-beta allows attacker to decrypt…
CVE-2008-3676 — Medium (CVSS 4.3): Unspecified vulnerability in the IMAP server in hMailServer 4.4.1 allows remote authenticated users to cause a denial…

All CVEs affecting Hmailserver →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →