How severe is CVE-2021-28302?

CVE-2021-28302 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-2021-28302 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28302?

CVE-2021-28302 affects Pupnp Project Pupnp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28302?

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-2021-28302 published?

CVE-2021-28302 was published on 2021-03-12 and last updated on 2026-06-17.

CVE-2021-28302

CVE-2021-28302 is a high-severity vulnerability in Pupnp Project Pupnp 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Pupnp Project Pupnp
Published: 2021-03-12
Last modified: 2026-06-17

Description

A stack overflow in pupnp before version 1.14.5 can cause the denial of service through the Parser_parseDocument() function. ixmlNode_free() will release a child node recursively, which will consume stack space and lead to a crash.

Frequently asked questions

What is CVE-2021-28302?: A stack overflow in pupnp before version 1.14.5 can cause the denial of service through the Parser_parseDocument() function. ixmlNode_free() will release a child node recursively, which will consume stack space and lead to a crash.
How severe is CVE-2021-28302?: CVE-2021-28302 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-2021-28302 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28302?: CVE-2021-28302 affects Pupnp Project Pupnp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28302?: 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-2021-28302 published?: CVE-2021-28302 was published on 2021-03-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pupnp_project:pupnp:*:*:*:*:*:*:*:*

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