CVE-2023-28613Public exploitNetwork attack vector

Baseband service interruption via fragment reassembly overflow

Published Apr 4, 2023 · Updated Feb 13, 2025

Integer overflow in Samsung Exynos 1280, Exynos 2200, and Exynos Modem 5300 allows remote attackers to interrupt baseband service. The SmdtIp4Rx::ProcessFragments path and its callees insufficiently validate IPv4 fragment parameters, allowing reassembly arithmetic to cause a heap buffer overflow. The attack requires network delivery of crafted IPv4 fragments and no user interaction; published evidence establishes availability loss but not its exact failure mode.

CVSS severity6.8
Medium
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Samsung Exynos 1280, Exynos 2200, and Exynos Modem 5300 allows remote attackers to interrupt baseband service. The SmdtIp4Rx::ProcessFragments path and its callees insufficiently validate IPv4 fragment parameters, allowing reassembly arithmetic to cause a heap buffer overflow. The attack requires network delivery of crafted IPv4 fragments and no user interaction; published evidence establishes availability loss but not its exact failure mode.

The record

CVE
CVE-2023-28613
Published
Apr 4, 2023
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 4, 2023CVE 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?

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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8MITRECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499Endpoint Denial of Service

Public exploit references

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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