CVE-2026-10701Network attack vector

Memory disclosure via incorrect text buffer boundaries

Published Jun 2, 2026 · Updated Jun 2, 2026

Incorrect boundary conditions in Firefox before 151.0.3 allow remote attackers to disclose sensitive memory during text processing. The Graphics: Text component applies incorrect boundary conditions, but Mozilla's restricted bug record leaves the exact buffer operation and triggering input undisclosed. CISA and Red Hat assessments disagree on the interaction gate and whether effects extend beyond disclosure, and the public record does not resolve either discrepancy.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect boundary conditions in Firefox before 151.0.3 allow remote attackers to disclose sensitive memory during text processing. The Graphics: Text component applies incorrect boundary conditions, but Mozilla's restricted bug record leaves the exact buffer operation and triggering input undisclosed. CISA and Red Hat assessments disagree on the interaction gate and whether effects extend beyond disclosure, and the public record does not resolve either discrepancy.

The record

CVE
CVE-2026-10701
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-131, CWE-119
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 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 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

7.5redhat-SADPCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-131Incorrect Calculation of Buffer Size
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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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