How severe is CVE-2026-81720?

CVE-2026-81720 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-81720 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-81720?

CVE-2026-81720 affects Jahlives Openssl Encrypt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-81720?

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

When was CVE-2026-81720 published?

CVE-2026-81720 was published on 2026-08-27 and last updated on 2026-09-03.

CVE-2026-81720

CVE-2026-81720 is a medium-severity vulnerability in Jahlives Openssl Encrypt with a CVSS 3.x base score of 6.2. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
CVSS v4: 6.9
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Jahlives Openssl Encrypt
Published: 2026-08-27
Last modified: 2026-09-03

Description

openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive memory_cost values that cause the host to crash when unlocking identities before authentication.

Frequently asked questions

What is CVE-2026-81720?: openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive memory_cost values that cause the host to crash when unlocking identities before authentication.
How severe is CVE-2026-81720?: CVE-2026-81720 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-81720 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-81720?: CVE-2026-81720 affects Jahlives Openssl Encrypt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-81720?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-81720 published?: CVE-2026-81720 was published on 2026-08-27 and last updated on 2026-09-03.

References

Affected products (1)

cpe:2.3:a:jahlives:openssl_encrypt:*:*:*:*:*:python:*:*

More vulnerabilities in Jahlives Openssl Encrypt

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