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CVE-2025-2783· NVD / CVE Program· CNA Chrome

Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker

Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker to perform a sandbox escape via a malicious file. (Chromium security severity: High)

HighCVSS 8.3 · v3.1KEVWeaponized Fix available
Published
Mar 26, 2025
Updated
Jun 17, 2026
EPSS
9.2% · 95th percentile
CWE
—
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Report tools

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Action score

66

This week

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CVSS
33 / 40 · 8.3 / 10
CISA KEV
30 / 30 · Listed
EPSS
3 / 30 · 9.2%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Mar 27, 2025. That signals real attacks, not theory.

Remediation deadline for government agencies: Apr 17, 2025.

Affected systems

VendorProduct
googlechrome
microsoftwindows

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • google chromebefore 134.0.6998.177

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Chrome). Independent of NVD's CPE analysis and usually ahead of it.

  • Google Chrome

    • 134.0.6998.177 and later · before 134.0.6998.177affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
openSUSE:Leap 15.6 NonFreeoperabefore 117.0.5408.163-lp156.2.32.1117.0.5408.163-lp156.2.32.1
openSUSE:Tumbleweedfirefox-esrbefore 128.9.0-1.1128.9.0-1.1
openSUSE:Tumbleweedlibqt5-qtwebenginebefore 5.15.19-1.15.15.19-1.1

Same product

google: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4863Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of boKEV
    95Now
  • CVE-2021-21224Type confusion in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker to execute arbitrary code inside a sandbox via a craftKEV
    90Now
  • CVE-2018-17463Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute arbitrary code inside a sKEV
    90Now
  • CVE-2020-6418Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted KEV
    89Now
  • CVE-2022-2294Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption viaKEV
    86Now
  • CVE-2021-21220Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heKEV
    86Now

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
opensuse:firefox-esr128.9.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:libqt5-qtwebengine5.15.19-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:opera117.0.5408.163-lp156.2.32.1 · openSUSE:Leap 15.6 NonFreePackage registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Exploit-DB entry ×1
  • Proof-of-concept repository on GitHub ×5

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrywebapps2025-08-11
Proof-of-concept repository on GitHubstars:332025-04-06
Proof-of-concept repository on GitHubstars:82025-06-15
Proof-of-concept repository on GitHubstars:12026-05-08
Proof-of-concept repository on GitHubstars:02026-06-15
Proof-of-concept repository on GitHubstars:02026-07-23

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. CISA KEVsame day
  3. First PoC+10 d
  4. TodaySep 30, 2026+553 d
EPSS, last 120 days+1% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records