How severe is CVE-2026-27114?

CVE-2026-27114 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-27114 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27114?

CVE-2026-27114 affects M2team Nanazip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27114?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-27114 have an EU (EUVD) identifier?

Yes. CVE-2026-27114 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8315.

When was CVE-2026-27114 published?

CVE-2026-27114 was published on 2026-02-19 and last updated on 2026-06-17.

CVE-2026-27114

CVE-2026-27114 is a high-severity vulnerability in M2team Nanazip with a CVSS 3.x base score of 7.5. 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-835.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 5.1
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8315
Weakness: CWE-835
Affected product: M2team Nanazip
Published: 2026-02-19
Last modified: 2026-06-17

Description

NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, circular `NextOffset` chains cause an infinite loop in the ROMFS archive parser. Version 6.0.1630.0 patches the issue.

Frequently asked questions

What is CVE-2026-27114?: NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, circular `NextOffset` chains cause an infinite loop in the ROMFS archive parser. Version 6.0.1630.0 patches the issue.
How severe is CVE-2026-27114?: CVE-2026-27114 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-27114 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27114?: CVE-2026-27114 affects M2team Nanazip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27114?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-27114 have an EU (EUVD) identifier?: Yes. CVE-2026-27114 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8315.
When was CVE-2026-27114 published?: CVE-2026-27114 was published on 2026-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:m2team:nanazip:*:*:*:*:*:*:*:*

More vulnerabilities in M2team Nanazip

CVE-2026-27711 — Medium (CVSS 6.6): NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0,…
CVE-2026-27709 — Medium (CVSS 6.6): NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0,…
CVE-2026-26282 — Medium (CVSS 6.6): NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, NanaZip has an…
CVE-2026-27014 — Medium (CVSS 5.5): NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, circular…
CVE-2026-27710 — Medium (CVSS 5.0): NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0,…
CVE-2026-44215 — Medium (CVSS 4.4): NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a one-byte heap out-of-bounds null write…

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