How severe is CVE-2022-26280?

CVE-2022-26280 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.

Is CVE-2022-26280 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-26280?

CVE-2022-26280 primarily affects Libarchive. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26280?

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

When was CVE-2022-26280 published?

CVE-2022-26280 was published on 2022-03-28 and last updated on 2026-06-17.

CVE-2022-26280

CVE-2022-26280 is a medium-severity vulnerability in Libarchive 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 5.8
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Libarchive
Published: 2022-03-28
Last modified: 2026-06-17

Description

Libarchive v3.6.0 was discovered to contain an out-of-bounds read via the component zipx_lzma_alone_init.

Frequently asked questions

What is CVE-2022-26280?: Libarchive v3.6.0 was discovered to contain an out-of-bounds read via the component zipx_lzma_alone_init.
How severe is CVE-2022-26280?: CVE-2022-26280 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.
Is CVE-2022-26280 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-26280?: CVE-2022-26280 primarily affects Libarchive. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26280?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-26280 published?: CVE-2022-26280 was published on 2022-03-28 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:libarchive:libarchive:3.6.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

More vulnerabilities in Libarchive

CVE-2022-36227 — Critical (CVSS 9.8): In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with…
CVE-2024-37407 — Critical (CVSS 9.1): Libarchive before 3.7.4 allows name out-of-bounds access when a ZIP archive has an empty-name file and mac-ext is…
CVE-2020-9308 — High (CVSS 8.8): archive_read_support_format_rar5.c in libarchive before 3.4.2 attempts to unpack a RAR5 file with an invalid or…
CVE-2018-1000878 — High (CVSS 8.8): libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416:…
CVE-2018-1000877 — High (CVSS 8.8): libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415:…
CVE-2016-1541 — High (CVSS 8.8): Heap-based buffer overflow in the zip_read_mac_metadata function in archive_read_support_format_zip.c in libarchive…

All CVEs affecting Libarchive →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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