CVE-2025-22377Network attack vector

Memory corruption via mismatched GPRS payload length

Published May 27, 2025 · Updated May 29, 2025

Heap out-of-bounds write in Samsung Exynos GPRS protocol implementations allows remote attackers to corrupt memory via a crafted payload. The implementation trusts a length declared inside the payload when it differs from the payload's actual length, causing a heap write beyond the intended buffer. Network delivery requires no authentication or user interaction; Samsung has not published whether the corruption yields code execution or a service interrupt.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap out-of-bounds write in Samsung Exynos GPRS protocol implementations allows remote attackers to corrupt memory via a crafted payload. The implementation trusts a length declared inside the payload when it differs from the payload's actual length, causing a heap write beyond the intended buffer. Network delivery requires no authentication or user interaction; Samsung has not published whether the corruption yields code execution or a service interrupt.

The record

CVE
CVE-2025-22377
Published
May 27, 2025
Updated
May 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2025CVE publishedPublication date reported by the CVE source.
  2. May 29, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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

Weakness, pattern, technique

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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