Google Chrome up to 147.0.7727.55 PDFium heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in Google Chrome. This affects an unknown function of the component PDFium. Performing a manipulation results in heap-based overflow. This vulnerability was named CVE-2026-6305. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Chrome. It has been classified as critical. This affects some unknown processing of the component PDFium. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Heap buffer overflow in PDFium in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)

It is possible to read the advisory at chromereleases.googleblog.com. This vulnerability is uniquely identified as CVE-2026-6305 since 04/14/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/28/2026).

The vulnerability scanner Nessus provides a plugin with the ID 307658 (Fedora 43 : chromium (2026-d3c82235d4)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 147.0.7727.101 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (307658) and CERT Bund (WID-SEC-2026-1130). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Fedora Linux
  • IGEL OS
  • SUSE openSUSE
  • Google Chrome
  • Microsoft Edge

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 8.8
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 307658
Nessus Name: Fedora 43 : chromium (2026-d3c82235d4)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 147.0.7727.101

Timelineinfo

04/14/2026 CVE reserved
04/16/2026 +2 days Advisory disclosed
04/16/2026 +0 days VulDB entry created
04/28/2026 +12 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 496618
Status: Confirmed

CVE: CVE-2026-6305 (🔒)
GCVE (CVE): GCVE-0-2026-6305
GCVE (VulDB): GCVE-100-357783
CERT Bund: WID-SEC-2026-1130 - Google Chrome/Microsoft Edge: Mehrere Schwachstellen

Entryinfo

Created: 04/16/2026 06:13
Updated: 04/28/2026 15:35
Changes: 04/16/2026 06:13 (67), 04/21/2026 17:13 (2), 04/28/2026 15:35 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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