CVE-2021-3889

mediumpriority · track · 32EPSS 0.013 · 70 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.29% (70th) EPSS

CVSS 5.8 · medium

Is it mine?

2 products

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-26

libmobi is vulnerable to Use of Out-of-range Pointer Offset

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–8.1

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.2

v3.07.1highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Lsecondary · ENISA EU

v3.07.1highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Lsecondary · security@huntr.devexploitability 2.8 · impact 3.7

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

The CWE weakness classes this flaw belongs to.

Products and version ranges known to be affected.

bfabiszewski bfabiszewski/libmobiunspecified → 0.8enisa_euvdEU
libmobi project libmobi< 0.8nvdUScpe:2.3:a:libmobi_project:libmobi:*:*:*:*:*:*:*:*

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 2021-10-19modified 2026-06-17

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External citations — patches, advisories, analysis.

scry

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