VDB

CVE-2026-53002

CVE-2026-53002 PUBLISHED CVSS 9.8 CRITICAL

Reported by Linux · Published June 24, 2026

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..]

Risk Scores

CVSS 3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
LinuxLinux9fafcd7b203229c3f3893a475741afc27e276306, 9fafcd7b203229c3f3893a475741afc27e276306, 9fafcd7b203229c3f3893a475741afc27e276306
LinuxLinux2.6.20, 0, 5.10.258
Red HatRed Hat Enterprise Linux 10
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 8
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat Enterprise Linux 10
Red HatRed Hat Enterprise Linux 8
Red HatRed Hat Enterprise Linux 6
Red HatRed Hat Enterprise Linux 7
LinuxLinux7.1, 5.10.258, 5.15.209
Red HatRed Hat Enterprise Linux 6
linuxlinux_kernel2.6.20, 2.6.20, 2.6.20
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 8

Timeline

  • Jun 24, 2026 CVE Published
  • Jun 25, 2026 Coalition ESS Score
  • Jun 26, 2026 EPSS Score
  • Jul 15, 2026 CVE Updated
  • Aug 7, 2026 EPSS Score
Open in Interactive Console →
$ Console Community · 100/wk Open console ›