Unauthorized screen casting via rate-limit bypass
Published Jul 28, 2026 · Updated Jul 28, 2026
Improper rate limiting in ESharePro through 7.6.0707 allows remote attackers on the local network to brute-force the screen-sharing code. The screen-sharing code verification path fails to enforce its intended rate limit across repeated guesses; CSA has not disclosed the precise bypass method. Local-network access is required, and a recovered code permits unauthorized casting that displays harmful content on the affected screen.
Summary
What happened
Improper rate limiting in ESharePro through 7.6.0707 allows remote attackers on the local network to brute-force the screen-sharing code. The screen-sharing code verification path fails to enforce its intended rate limit across repeated guesses; CSA has not disclosed the precise bypass method. Local-network access is required, and a recovered code permits unauthorized casting that displays harmful content on the affected screen.
The record
- CVE
- CVE-2026-55977
- Published
- Jul 28, 2026
- Updated
- Jul 28, 2026
- Vendor
- EShare Technology Co., Ltd.
- Product
- ESharePro
- Classifications
- CWE-307, T1110.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 28, 2026CVE publishedPublication date reported by the CVE source.
- Jul 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=versions through 7.6.0707
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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