CVE-2026-5773

wrong reuse of SMB connection

CVE-2026-5773 is fixed in 7 products on 1 platform, first by curl 7.58.0-2ubuntu3.24+esm10, released April 29, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0062
50th percentile

wrong reuse of SMB connection (bsc#1262633).

Where it's fixed

ProductFixed inFixReleased
Linux
curl · Debian 12.15 (bookworm) 7.88.1-10+deb12u15 DEBIAN-CVE-2026-5773 May 15, 2026
curl · Debian 13.5 (trixie) 8.14.1-2+deb13u4 DEBIAN-CVE-2026-5773 May 15, 2026
curl · Debian 14 8.20.0~rc2-1 DEBIAN-CVE-2026-5773 May 15, 2026
curl · Ubuntu 18.04.6 LTS (bionic) 7.58.0-2ubuntu3.24+esm10 curl 7.58.0-2ubuntu3.24+esm10 Apr 29, 2026
curl · Ubuntu 20.04 LTS (focal) 7.68.0-1ubuntu2.25+esm5 curl 7.68.0-1ubuntu2.25+esm5 Apr 29, 2026
curl · Ubuntu 22.04.1 LTS (jammy) 7.81.0-1ubuntu1.24 curl 7.81.0-1ubuntu1.24 May 15, 2026
curl · Ubuntu 24.04.5 LTS (noble) 8.5.0-2ubuntu10.9 curl 8.5.0-2ubuntu10.9 May 15, 2026
curl · Ubuntu 25.10 (questing) 8.14.1-2ubuntu1.3 curl 8.14.1-2ubuntu1.3 May 15, 2026
curl · Ubuntu 26.04.1 LTS (resolute) 8.18.0-1ubuntu2.1 curl 8.18.0-1ubuntu2.1 Apr 29, 2026
curl · opensuse-leap 16.0 8.14.1-160000.9.1 OPENSUSE-SU-2026:21774-1 Sep 6, 2026
curl · sles 15.6 8.14.1-150600.4.51.1 SUSE-SU-2026:4047-1 Sep 7, 2026
curl · sles 15.7 8.14.1-150700.7.23.1 SUSE-SU-2026:3798-1 Aug 25, 2026
curl · sles 16.0 8.14.1-160000.9.1 SUSE-SU-2026:23638-1 Sep 6, 2026
curl-mini · sles 16.0 8.14.1-160000.9.1 SUSE-SU-2026:23638-1 Sep 6, 2026
libcurl3-gnutls · Ubuntu 18.04.6 LTS (bionic) 7.58.0-2ubuntu3.24+esm10 libcurl3-gnutls 7.58.0-2ubuntu3.24+esm10 Apr 29, 2026
libcurl3-gnutls · Ubuntu 20.04 LTS (focal) 7.68.0-1ubuntu2.25+esm5 libcurl3-gnutls 7.68.0-1ubuntu2.25+esm5 Apr 29, 2026
libcurl3-gnutls · Ubuntu 22.04.1 LTS (jammy) 7.81.0-1ubuntu1.24 libcurl3-gnutls 7.81.0-1ubuntu1.24 May 15, 2026
libcurl3-nss · Ubuntu 18.04.6 LTS (bionic) 7.58.0-2ubuntu3.24+esm10 libcurl3-nss 7.58.0-2ubuntu3.24+esm10 Apr 29, 2026
libcurl3-nss · Ubuntu 20.04 LTS (focal) 7.68.0-1ubuntu2.25+esm5 libcurl3-nss 7.68.0-1ubuntu2.25+esm5 Apr 29, 2026
libcurl3-nss · Ubuntu 22.04.1 LTS (jammy) 7.81.0-1ubuntu1.24 libcurl3-nss 7.81.0-1ubuntu1.24 May 15, 2026
libcurl3t64-gnutls · Ubuntu 24.04.5 LTS (noble) 8.5.0-2ubuntu10.9 libcurl3t64-gnutls 8.5.0-2ubuntu10.9 May 15, 2026
libcurl3t64-gnutls · Ubuntu 25.10 (questing) 8.14.1-2ubuntu1.3 libcurl3t64-gnutls 8.14.1-2ubuntu1.3 May 15, 2026
libcurl3t64-gnutls · Ubuntu 26.04.1 LTS (resolute) 8.18.0-1ubuntu2.1 libcurl3t64-gnutls 8.18.0-1ubuntu2.1 Apr 29, 2026
libcurl4 · Ubuntu 18.04.6 LTS (bionic) 7.58.0-2ubuntu3.24+esm10 libcurl4 7.58.0-2ubuntu3.24+esm10 Apr 29, 2026
libcurl4 · Ubuntu 20.04 LTS (focal) 7.68.0-1ubuntu2.25+esm5 libcurl4 7.68.0-1ubuntu2.25+esm5 Apr 29, 2026
libcurl4 · Ubuntu 22.04.1 LTS (jammy) 7.81.0-1ubuntu1.24 libcurl4 7.81.0-1ubuntu1.24 May 15, 2026
libcurl4t64 · Ubuntu 24.04.5 LTS (noble) 8.5.0-2ubuntu10.9 libcurl4t64 8.5.0-2ubuntu10.9 May 15, 2026
libcurl4t64 · Ubuntu 25.10 (questing) 8.14.1-2ubuntu1.3 libcurl4t64 8.14.1-2ubuntu1.3 May 15, 2026
libcurl4t64 · Ubuntu 26.04.1 LTS (resolute) 8.18.0-1ubuntu2.1 libcurl4t64 8.18.0-1ubuntu2.1 Apr 29, 2026

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