How severe is CVE-2021-38382?

CVE-2021-38382 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-2021-38382 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-2021-38382?

CVE-2021-38382 affects Live555. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38382?

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

When was CVE-2021-38382 published?

CVE-2021-38382 was published on 2021-08-10 and last updated on 2026-06-17.

CVE-2021-38382

CVE-2021-38382 is a medium-severity vulnerability in Live555 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-416.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Live555
Published: 2021-08-10
Last modified: 2026-06-17

Description

Live555 through 1.08 does not handle Matroska and Ogg files properly. Sending two successive RTSP SETUP commands for the same track causes a Use-After-Free and daemon crash.

Frequently asked questions

What is CVE-2021-38382?: Live555 through 1.08 does not handle Matroska and Ogg files properly. Sending two successive RTSP SETUP commands for the same track causes a Use-After-Free and daemon crash.
How severe is CVE-2021-38382?: CVE-2021-38382 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-2021-38382 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-2021-38382?: CVE-2021-38382 affects Live555. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38382?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-38382 published?: CVE-2021-38382 was published on 2021-08-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:live555:live555:*:*:*:*:*:*:*:*

More vulnerabilities in Live555

CVE-2023-37117 — Critical (CVSS 9.8): A heap-use-after-free vulnerability was found in live555 version 2023.05.10 while handling the SETUP.
CVE-2021-41396 — High (CVSS 7.5): Live555 through 1.08 does not handle socket connections properly. A huge number of incoming socket connections in a…
CVE-2021-39282 — High (CVSS 7.5): Live555 through 1.08 has a memory leak in AC3AudioStreamParser for AC3 files.
CVE-2021-38380 — High (CVSS 7.5): Live555 through 1.08 mishandles huge requests for the same MP3 stream, leading to recursion and s stack-based buffer…
CVE-2021-38381 — Medium (CVSS 6.5): Live555 through 1.08 does not handle MPEG-1 or 2 files properly. Sending two successive RTSP SETUP commands for the…
CVE-2021-39283 — Medium (CVSS 5.5): liveMedia/FramedSource.cpp in Live555 through 1.08 allows an assertion failure and application exit via multiple SETUP…

All CVEs affecting Live555 →

Other CWE-416 (Use After Free) vulnerabilities

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CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →