Linux · Amazon Linux · Security advisory · July 6, 2026

ALAS2023-2026-1925: Security update for 19 packages

ALAS2023-2026-1925, released July 6, 2026, fixes 84 CVEs across 19 products. One of them is being exploited (CVE-2026-53266); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV
CVEs closed
84
2 rated Critical
Exploited
1
CVE-2026-53266
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0093
60th percentile

Priority of the 84 CVEs

Patch now 1 Urgent 2 High 55 Routine 26

Fixed package versions

ProductReleaseFixed in
bpftool6.18amzn 20231:6.18.36-69.134.amzn2023
bpftool6.18-debuginfoamzn 20231:6.18.36-69.134.amzn2023
kernel-livepatch-6.18.36-69.134amzn 20231:1.0-0.amzn2023
kernel6.18amzn 20231:6.18.36-69.134.amzn2023
kernel6.18-debuginfoamzn 20231:6.18.36-69.134.amzn2023
kernel6.18-debuginfo-common-aarch64amzn 20231:6.18.36-69.134.amzn2023
kernel6.18-debuginfo-common-x86_64amzn 20231:6.18.36-69.134.amzn2023
kernel6.18-develamzn 20231:6.18.36-69.134.amzn2023
kernel6.18-headersamzn 20231:6.18.36-69.134.amzn2023
kernel6.18-modules-extraamzn 20231:6.18.36-69.134.amzn2023
kernel6.18-modules-extra-commonamzn 20231:6.18.36-69.134.amzn2023
kernel6.18-toolsamzn 20231:6.18.36-69.134.amzn2023
kernel6.18-tools-debuginfoamzn 20231:6.18.36-69.134.amzn2023
kernel6.18-tools-develamzn 20231:6.18.36-69.134.amzn2023
microvm-kernel6.18amzn 20231:6.18.36-69.134.amzn2023
perf6.18amzn 20231:6.18.36-69.134.amzn2023
perf6.18-debuginfoamzn 20231:6.18.36-69.134.amzn2023
python3-perf6.18amzn 20231:6.18.36-69.134.amzn2023
python3-perf6.18-debuginfoamzn 20231:6.18.36-69.134.amzn2023

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Patch now CVE-2026-53266 netfilter: bridge: make ebt_snat ARP rewrite writable8.8 0.0093 KEVExploited
Urgent CVE-2026-53224 linux: In the Linux kernel, the following vulnerability has been resolved: sctp: validate embedded INIT chunk and address l...9.1 0.0057 None reported
Urgent CVE-2026-53175 linux: In the Linux kernel, the following vulnerability has been resolved: inet: frags: fix use-after-free caused by the fq...9.8 0.0031 None reported
High CVE-2026-52929 sctp: stream: fully roll back denied add-stream state9.8 0.0087 None reported
High CVE-2026-52924 sctp: purge outqueue on stale COOKIE-ECHO handling9.8 0.0066 None reported
High CVE-2026-46331 net/sched: fix pedit partial COW leading to page cache corruption8.1 0.0064 None reported
High CVE-2026-53221 ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()9.8 0.0058 None reported
High CVE-2026-53228 ipv6: sit: reload inner IPv6 header after GSO offloads9.8 0.0058 None reported
High CVE-2026-53225 sctp: fix uninit-value in __sctp_rcv_asconf_lookup()9.1 0.0058 None reported
High CVE-2026-53268 netfilter: conntrack_irc: fix possible out-of-bounds read8.2 0.0052 None reported
High CVE-2026-53183 mptcp: allow subflow rcv wnd to shrink7.5 0.0049 None reported
High CVE-2026-53184 udp: clear skb->dev before running a sockmap verdict7.5 0.0049 None reported
High CVE-2026-53264 net/sched: act_api: use RCU with deferred freeing for action lifecycle7.8 0.0049 None reported
High CVE-2026-53229 linux: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix DMA and xdp_frame leak on XD...7.5 0.0048 None reported
High CVE-2026-52946 fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling7.5 0.0047 None reported
High CVE-2026-53246 sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing9.8 0.0044 None reported
High CVE-2026-53235 linux: In the Linux kernel, the following vulnerability has been resolved: net: add pskb_may_pull() to skb_gro_receive_list...7.8 0.0044 None reported
High CVE-2026-53131 netfilter: require Ethernet MAC header before using eth_hdr()9.4 0.0044 None reported
High CVE-2026-53180 linux: In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix livelock in tmigr_handle_r...7.5 0.0034 None reported
High CVE-2026-63867 bpftool: [5.15.0-323.211.3.3] - Revert 'x86/alternatives: Add alt_instr.flags' (Harshit Mogalapalli) [Orabug: 39853924] [5.1...8.2 0.0027 None reported
High CVE-2026-53275 ipv6: mcast: Fix use-after-free when processing MLD queries8.8 0.0026 None reported
High CVE-2026-53232 net: phy: clean the sfp upstream if phy probing fails8.8 0.0026 None reported
High CVE-2026-46320 tap: free page on error paths in tap_get_user_xdp()7.4 0.0025 None reported
High CVE-2026-53212 netfilter: nft_tunnel: fix use-after-free on object destroy7.8 0.0019 None reported
High CVE-2026-53191 linux: In the Linux kernel, the following vulnerability has been resolved: io_uring/net: inherit IORING_CQE_F_BUF_MORE acro...7.8 0.0018 None reported
Showing 1 to 25 of 84 1Next

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