How severe is CVE-2026-22188?

CVE-2026-22188 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-22188 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22188?

CVE-2026-22188 affects Cmu Panda3d. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22188?

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

Does CVE-2026-22188 have an EU (EUVD) identifier?

Yes. CVE-2026-22188 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1164.

When was CVE-2026-22188 published?

CVE-2026-22188 was published on 2026-01-07 and last updated on 2026-06-17.

CVE-2026-22188

CVE-2026-22188 is a medium-severity vulnerability in Cmu Panda3d with a CVSS 3.x base score of 5.5. 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-908.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1164
Weakness: CWE-908
Affected product: Cmu Panda3d
Published: 2026-01-07
Last modified: 2026-06-17

Description

The deploy-stub component in Panda3D versions up to and including 1.10.16 contains a denial of service vulnerability due to unbounded stack allocation. The deploy-stub executable allocates argv_copy and argv_copy2 using alloca() based directly on the attacker-controlled argc value without validation. Supplying a large number of command-line arguments can exhaust stack space and propagate uninitialized stack memory into Python interpreter initialization, resulting in a reliable crash and undefined behavior.

Frequently asked questions

What is CVE-2026-22188?: The deploy-stub component in Panda3D versions up to and including 1.10.16 contains a denial of service vulnerability due to unbounded stack allocation. The deploy-stub executable allocates argv_copy and argv_copy2 using alloca() based directly on the attacker-controlled argc value without validation. Supplying a large number of command-line arguments can exhaust stack space and propagate uninitialized stack memory into Python interpreter initialization, resulting in a reliable crash and undefined behavior.
How severe is CVE-2026-22188?: CVE-2026-22188 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-22188 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22188?: CVE-2026-22188 affects Cmu Panda3d. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22188?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22188 have an EU (EUVD) identifier?: Yes. CVE-2026-22188 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1164.
When was CVE-2026-22188 published?: CVE-2026-22188 was published on 2026-01-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cmu:panda3d:*:*:*:*:*:*:*:*

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