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CVE-2023-1900

20
FAUCET Score

CVE-2023-1900 is a heap overflow vulnerability in Avira Antivirus's network protection feature, allowing a local attacker with execution rights to corrupt data and cause a denial-of-service. Rated Medium (CVSS 5.5), it requires local access and has a high impact on availability, but no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE. Avira has addressed this issue in Endpointprotection.exe version 1.0.2303.633.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.2303.633CPE matchmatch criteria
cpe:2.3:a:avira:antivirus:*:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 78th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.norton.com / sp/static/external/tools/security-advisories.html
Third Party Advisory