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CVE-2020-11528

19
FAUCET Score

CVE-2020-11528 describes a stack-based buffer overflow vulnerability in bit2spr, specifically within the conv_bitmap function in bit2spr.c. This flaw, triggered by a long line in a bitmap file, allows for a 129-byte write. With a CVSS score of 7.5 (HIGH), it presents a network-exploitable, low-complexity attack that can lead to high availability impact. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1992-06-07CPE matchmatch criteria
cpe:2.3:a:bit2spr_project:bit2spr:1992-06-07:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.25%
Probability of exploitation in next 30 days
EPSS Percentile
66.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0125 is in the 46th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

github.com / 14isnot40/vul_discovery/blob/06d04dbbc6f792a82321c00376d4dbf3add00f4f/poc/bit2spr%20vulnerability%20discovery.md.pdf
ExploitThird Party Advisory
github.com / 14isnot40/vul_discovery/blob/14isnot40-patch-1/README.md
Broken Link