How severe is CVE-2021-38614?

CVE-2021-38614 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-38614 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-38614?

CVE-2021-38614 affects Polipo Project Polipo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38614?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-38614 published?

CVE-2021-38614 was published on 2021-08-12 and last updated on 2026-06-17.

CVE-2021-38614

CVE-2021-38614 is a high-severity vulnerability in Polipo Project Polipo with a CVSS 3.x base score of 7.5. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Polipo Project Polipo
Published: 2021-08-12
Last modified: 2026-06-17

Description

Polipo through 1.1.1, when NDEBUG is used, allows a heap-based buffer overflow during parsing of a Range header. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Frequently asked questions

What is CVE-2021-38614?: Polipo through 1.1.1, when NDEBUG is used, allows a heap-based buffer overflow during parsing of a Range header. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
How severe is CVE-2021-38614?: CVE-2021-38614 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-38614 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-38614?: CVE-2021-38614 affects Polipo Project Polipo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38614?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-38614 published?: CVE-2021-38614 was published on 2021-08-12 and last updated on 2026-06-17.

References

https://www.openwall.com/lists/oss-security/2021/07/28/2

Affected products (1)

cpe:2.3:a:polipo_project:polipo:*:*:*:*:*:*:*:*

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CVE-2020-36420 — High (CVSS 7.5): Polipo through 1.1.1, when NDEBUG is omitted, allows denial of service via a reachable assertion during parsing of a…
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