CVE-2017-15227

mediumpriority · track · 31EPSS 0.021 · 81 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.08% (81st) EPSS

CVSS 5 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the state later on.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USprimary

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
irssi irssi≤ 1.0.4nvdUScpe:2.3:a:irssi:irssi:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2017-10-22modified 2026-06-17

related (12,286)

Related entries.

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+12281 more

references (10)

External citations — patches, advisories, analysis.

http://openwall.com/lists/oss-security/2017/10/22/4 cnnvd
https://irssi.org/security/irssi_sa_2017_10.txt cnnvd
http://openwall.com/lists/oss-security/2017/10/22/4 enisa_euvd
https://irssi.org/security/irssi_sa_2017_10.txt enisa_euvd
https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html enisa_euvd
https://www.debian.org/security/2017/dsa-4016 enisa_euvd
http://openwall.com/lists/oss-security/2017/10/22/4Mailing ListMitigationPatchThird Party Advisorynvd
https://irssi.org/security/irssi_sa_2017_10.txtMitigationPatchVendor Advisorynvd

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