CVE-2023-50671Public exploit

Application crash via malformed Nikon EXIF data

Published Jan 11, 2024 · Updated Jun 17, 2025

Heap-based buffer overflow in exiftags 1.01 allows context-dependent attackers to crash the utility via a crafted JPEG file. In nikon_prop1 in nikon.c, snprintf writes 28 bytes beyond a 21-byte heap allocation while processing malformed Nikon EXIF properties. A user must run exiftags on the attacker-supplied image; the demonstrated consequence is an AddressSanitizer-detected abort.

CVSS severity7.8
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in exiftags 1.01 allows context-dependent attackers to crash the utility via a crafted JPEG file. In nikon_prop1 in nikon.c, snprintf writes 28 bytes beyond a 21-byte heap allocation while processing malformed Nikon EXIF properties. A user must run exiftags on the attacker-supplied image; the demonstrated consequence is an AddressSanitizer-detected abort.

The record

CVE
CVE-2023-50671
Published
Jan 11, 2024
Updated
Jun 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8CISA ADP VulnrichmentCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

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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