CVE-2026-15028Public exploit

Application crash via PAX parser boundary overread

Published Jul 10, 2026 · Updated Jul 10, 2026

Out-of-bounds read in libarchive on Red Hat Enterprise Linux and Hardened Images allows local users to crash archive-processing applications. The PAX SUN.holesdata parser dereferences the byte after a caller-bounded value when the final numeric field consumes all remaining bytes. Exploitation requires a crafted tar archive to be parsed through a user action or application workflow; code execution is theoretically possible, but Red Hat reports a localized crash as the common outcome.

CVSS severity3.9
Low
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

Out-of-bounds read in libarchive on Red Hat Enterprise Linux and Hardened Images allows local users to crash archive-processing applications. The PAX SUN.holesdata parser dereferences the byte after a caller-bounded value when the final numeric field consumes all remaining bytes. Exploitation requires a crafted tar archive to be parsed through a user action or application workflow; code execution is theoretically possible, but Red Hat reports a localized crash as the common outcome.

The record

CVE
CVE-2026-15028
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-122, T1204.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
389 Directory Server · Red Hat Hardened ImagesAffected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.

Published CVSS scores

3.9Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1204.002User Execution: Malicious 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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