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CVE-2015-8843

19
FAUCET Score

CVE-2015-8843 describes a local privilege escalation vulnerability in the Foxit Cloud Update Service within Foxit Reader versions 6.1 through 6.2.x and 7.x before 7.2.2. This flaw allows a local attacker to gain elevated privileges by manipulating shared memory during a Cloud plugin update, leading to memory corruption. Rated as HIGH severity (CVSS 7.4), the attack requires high attack complexity but can result in full compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.1CPE matchmatch criteria
cpe:2.3:a:foxitsoftware:foxit_reader:6.1:*:*:*:*:*:*:*
6.1.2CPE matchmatch criteria
cpe:2.3:a:foxitsoftware:foxit_reader:6.1.2:*:*:*:*:*:*:*
6.1.4CPE matchmatch criteria
cpe:2.3:a:foxitsoftware:foxit_reader:6.1.4:*:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:a:foxitsoftware:foxit_reader:6.2:*:*:*:*:*:*:*
6.2.1CPE matchmatch criteria
cpe:2.3:a:foxitsoftware:foxit_reader:6.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.4
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
47.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 89th percentile among its peer group of 157 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

foxitsoftware.com / support/security-bulletins.php
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-15-640