CVE-2024-27374

Heap overwrite via unchecked userspace length

Published Jun 5, 2024 · Updated Feb 13, 2025

Heap buffer overflow in Samsung Exynos 980, 850, 1280, 1380, and 1330 allows local users to overwrite heap memory. The slsi_nan_publish_get_nl_params() function accepts hal_req->service_specific_info_len from userspace without validating it before a heap write. Exploitation requires high local privileges, and Samsung has not published the downstream effect of corrupting the heap allocation.

CVSS severity6.7
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in Samsung Exynos 980, 850, 1280, 1380, and 1330 allows local users to overwrite heap memory. The slsi_nan_publish_get_nl_params() function accepts hal_req->service_specific_info_len from userspace without validating it before a heap write. Exploitation requires high local privileges, and Samsung has not published the downstream effect of corrupting the heap allocation.

The record

CVE
CVE-2024-27374
Published
Jun 5, 2024
Updated
Feb 13, 2025
Vendor
Samsung Electronics
Product
Exynos
Classifications
CWE-122, CWE-787
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1280
  2. Affected versionversion=1330
  3. Affected versionversion=1380
  4. Affected versionversion=850
  5. Affected versionversion=980

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Samsung Electronics · Exynosversion=1280; version=1330; version=1380; version=850; version=980

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.7MITRECVSS:3.1/AV:L/AC:L/PR:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write

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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