Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2017-8773

31
FAUCET Score

CVE-2017-8773 is a critical out-of-bounds write vulnerability affecting Quick Heal Internet Security, Total Security, and AntiVirus Pro versions 10.1.0.316. This flaw stems from improper validation of the dwCompressionSize in Microsoft WIM Header WIMHEADER_V1_PACKED, allowing for remote code execution and privilege escalation. With a CVSS score of 9.8, it represents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its critical severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.1.0.316CPE matchmatch criteria
cpe:2.3:a:quickheal:antivirus_pro:*:*:*:*:*:*:*:*
<= 10.1.0.316CPE matchmatch criteria
cpe:2.3:a:quickheal:internet_security:*:*:*:*:*:*:*:*
<= 10.1.0.316CPE matchmatch criteria
cpe:2.3:a:quickheal:total_security:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.32%
Probability of exploitation in next 30 days
EPSS Percentile
81.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0232 is in the 71st percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

payatu.com / oob-write-heap-buffer-dwcompressionsize-ms-wim
Third Party Advisory