CVE-2020-6625Public exploit

Data disclosure and crash via GPS EXIF parsing

Published Jan 9, 2020 · Updated Aug 4, 2024

Heap-based buffer over-read in jhead 3.04 and earlier allows context-dependent attackers to disclose memory or crash via a crafted JPEG. For GPS latitude and longitude tags, ProcessGpsInfo advances through three rational components and passes each denominator pointer to Get32s without a remaining-length check. Processing requires a local user to run jhead on the malicious file; the published assessment reports no ability to modify data.

CVSS severity7.1
High
EPSS probability1.44%
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 over-read in jhead 3.04 and earlier allows context-dependent attackers to disclose memory or crash via a crafted JPEG. For GPS latitude and longitude tags, ProcessGpsInfo advances through three rational components and passes each denominator pointer to Get32s without a remaining-length check. Processing requires a local user to run jhead on the malicious file; the published assessment reports no ability to modify data.

The record

CVE
CVE-2020-6625
Published
Jan 9, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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

5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:P
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/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.

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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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1204.002Malicious File

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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