How severe is CVE-2021-44591?

CVE-2021-44591 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-44591 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44591?

CVE-2021-44591 affects Libming. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44591?

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

When was CVE-2021-44591 published?

CVE-2021-44591 was published on 2022-01-06 and last updated on 2026-06-17.

CVE-2021-44591

CVE-2021-44591 is a medium-severity vulnerability in Libming 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)
CVSS v2: 4.3
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Libming
Published: 2022-01-06
Last modified: 2026-06-17

Description

In libming 0.4.8, the parseSWF_DEFINELOSSLESS2 function in util/parser.c lacks a boundary check that would lead to denial-of-service attacks via a crafted SWF file.

Frequently asked questions

What is CVE-2021-44591?: In libming 0.4.8, the parseSWF_DEFINELOSSLESS2 function in util/parser.c lacks a boundary check that would lead to denial-of-service attacks via a crafted SWF file.
How severe is CVE-2021-44591?: CVE-2021-44591 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-44591 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44591?: CVE-2021-44591 affects Libming. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44591?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-44591 published?: CVE-2021-44591 was published on 2022-01-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libming:libming:0.4.8:*:*:*:*:*:*:*

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