CVE-2026-72441

UNRATEDCVSS · not yet scoredTrending — 5 sources updated this week
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

ieee802154: fix kernel-infoleak in dgram_recvmsg()

KMSAN reported a kernel-infoleak in move_addr_to_user():

BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:131 [inline] BUG: KMSAN: kernel-infoleak in _inline_copy_to_user include/linux/uaccess.h:205 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_user+0xcc/0x120 lib/usercopy.c:26 instrument_copy_to_user include/linux/instrumented.h:131 [inline] _inline_copy_to_user include/linux/uaccess.h:205 [inline] _copy_to_user+0xcc/0x120 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:236 [inline] move_addr_to_user+0x2e7/0x440 net/socket.c:302 ____sys_recvmsg+0x232/0x610 net/socket.c:2925 ... Uninit was stored to memory at: ieee802154_addr_to_sa include/net/ieee802154_netdev.h:369 [inline] dgram_recvmsg+0xa09/0xbe0 net/ieee802154/socket.c:739

The issue occurs because the pan_id field of struct ieee802154_addr is left uninitialized when the address mode is IEEE802154_ADDR_NONE. The execution flow is as follows:

  • __ieee802154_rx_handle_packet() declares a local struct
ieee802154_hdr hdr on the stack.
  • ieee802154_hdr_pull() calls ieee802154_hdr_get_addr() to parse
the source and destination addresses into this structure.
  • If the address mode is IEEE802154_ADDR_NONE,
ieee802154_hdr_get_addr() previously only set the mode field, leaving the pan_id field containing uninitialized stack memory.
  • This uninitialized pan_id is later copied into a struct
sockaddr_ieee802154 in dgram_recvmsg() via ieee802154_addr_to_sa().
  • Finally, move_addr_to_user() copies the socket address structure to
user space, leaking the uninitialized bytes.

Fix this by using memset to zero out the address structure in ieee802154_hdr_get_addr() when the mode is IEEE802154_ADDR_NONE.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

References (8)

Vendor Advisories for CVE-2026-72441(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 16× in last 7d / 16× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 07:56 UTCGHSA enrichment
  3. 2026-08-19 17:04 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-17 06:28 UTCGHSA enrichment
  6. 2026-08-17 06:22 UTCNVD update
  7. 2026-08-17 05:28 UTCEG score recompute
  8. 2026-08-17 05:28 UTCGHSA enrichment
  9. 2026-08-17 05:25 UTCMITRE cvelistV5
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 02:15 UTCEPSS rescore
  13. 2026-08-15 06:33 UTCGHSA enrichment
  14. 2026-08-15 06:23 UTCNVD update
  15. 2026-08-15 06:04 UTCEG score recompute
  16. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-72441?
CVE-2026-72441 is a publicly disclosed vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: ieee802154: fix kernel-infoleak in dgram_recvmsg() KMSAN reported a kernel-infoleak in moveaddrto_user(): BUG: KMSAN: kernel-infoleak in instrumentcopyto_user include/linux/instrumented.h:131 [inline] BUG: KMSAN: kernel-infoleak in…
When was CVE-2026-72441 disclosed?
CVE-2026-72441 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72441 actively exploited?
CVE-2026-72441 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 86.4% of all scored CVEs.
How do I remediate CVE-2026-72441?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72441, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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