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CVE-2026-63209: Integer Overflow or Wraparound

🗓️ 29 Sep 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 3 Views

Signed integer overflow in compress s2.NewDict() causes out-of-bounds access and SIGSEGV.

Related
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-63209
29 Sep 202614:58
–cve
cvelist
Cvelist
CVE-2026-63209 Integer Overflow or Wraparound and Out-of-bounds Write in compress
29 Sep 202614:58
–cvelist
debiancve
Debian CVE
CVE-2026-63209
29 Sep 202614:58
–debiancve
euvd
EUVD
EUVD-2026-88977
29 Sep 202614:58
–euvd
nvd
NVD
CVE-2026-63209
29 Sep 202615:17
–nvd
osv
OSV
DEBIAN-CVE-2026-63209
29 Sep 202615:17
–osv
osv
OSV
GO-2026-5841 OOB read in github.com/klauspost/compress/s2
27 Jul 202616:16
–osv
osv
OSV
UBUNTU-CVE-2026-63209
29 Sep 202615:17
–osv
ptsecurity
Positive Technologies
PT-2026-102637
27 Jul 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-63209
1 Oct 202616:44
–redhatcve
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30 Sep 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.00365
SSVC
3