Is CVE-2026-44722 in the CISA KEV catalog?

No. CVE-2026-44722 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-44722?

CVE-2026-44722 has a CVSS v3 base score of 6.2 (MEDIUM).

What is the EPSS score for CVE-2026-44722?

CVE-2026-44722 has an EPSS score of 0.08% (0th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-44722?

No published fix for CVE-2026-44722 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-44722

MEDIUM

6.2

CVSS v3

NVD

Description

pyzipper is a replacement for Python's zipfile that can read and write AES encrypted zip files. Prior to 0.4.0, a Python operator precedence bug in pyzipper/zipfile_aes.py caused the AE-2 format to never be automatically selected during encryption, causing encrypted entries to be written in AE-1 format and exposing the plaintext CRC32 checksum in the ZIP header and, for unseekable zip archives, in the datadescripter section, allowing an attacker who possesses the archive to brute-force candidate plaintexts for small or low-entropy files by comparing CRC32 values. This issue is fixed in version 0.4.0.

CWE-480

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.08%probability of exploitation in 30 days

0thpercentile

Low risk: more likely to be exploited than 0% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-480 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-1947	Medium	6.5	1.2%	-	Fix
CVE-2024-35190	Medium	5.8	0.6%	-	-
CVE-2026-15043	Critical	9.8	0.5%	-	Fix
CVE-2026-48497	Medium	5.9	0.4%	-	Fix
CVE-2026-43114	Critical	9.4	0.4%	-	Fix
CVE-2026-4748	High	7.5	0.3%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-17.