CVE-2026-72065Network attack vector

Kernel memory corruption via unchecked NIC packet length

Published Aug 15, 2026 · Updated Aug 15, 2026

Out-of-bounds access in affected Linux kernels allows remote attackers to corrupt memory or crash the kernel through MANA traffic. mana_process_rx_cqe trusted the NIC-supplied RX CQE pkt_len and passed values larger than rxq->datasize into skb and XDP buffer processing. Reachability requires an active MANA interface receiving routed traffic; the resulting access remains within the guest kernel.

CVSS severity9.8
Critical
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in affected Linux kernels allows remote attackers to corrupt memory or crash the kernel through MANA traffic. mana_process_rx_cqe trusted the NIC-supplied RX CQE pkt_len and passed values larger than rxq->datasize into skb and XDP buffer processing. Reachability requires an active MANA interface receiving routed traffic; the resulting access remains within the guest kernel.

The record

CVE
CVE-2026-72065
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.13
  2. Affected versionversion=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <282c5214ca4eb3799158c76782646e86d2945d1b
  3. Affected versionversion=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <2e276b14b6d378372bf0152df89286cbe7632fb0
  4. Affected versionversion=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <2e2a83b4998af4384e677d3b2ac08565274279bf
  5. Affected versionversion=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <6080189291d958604dcefe513a13900835ac982f
  6. Affected versionversion=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <6d13eaa13341a8f80aaf86f78591e1b1d393711d

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.13; version=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <282c5214ca4eb3799158c76782646e86d2945d1b; version=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <2e276b14b6d378372bf0152df89286cbe7632fb0; version=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <2e2a83b4998af4384e677d3b2ac08565274279bf; version=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <6080189291d958604dcefe513a13900835ac982f; version=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <6d13eaa13341a8f80aaf86f78591e1b1d393711d

Published CVSS scores

7.0OracleCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0Red HatCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
9.8Linux kernel CVE teamCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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