Application crash via unchecked gradebook offsets
Published Mar 11, 2026 · Updated Mar 11, 2026
Out-of-bounds read in Easy Grade Pro 4.1.0.2 allows attackers to crash the application by inducing a user to open a crafted .EGP file. The .EGP parser trusts file-supplied start and end offsets after structural checks, then uses the resulting source pointer and size in memcpy without verifying that the read remains inside the loaded file buffer. Exploitation requires user interaction with a structurally valid malicious gradebook and produces an access-violation crash rather than code execution.
Summary
What happened
Out-of-bounds read in Easy Grade Pro 4.1.0.2 allows attackers to crash the application by inducing a user to open a crafted .EGP file. The .EGP parser trusts file-supplied start and end offsets after structural checks, then uses the resulting source pointer and size in memcpy without verifying that the read remains inside the loaded file buffer. Exploitation requires user interaction with a structurally valid malicious gradebook and produces an access-violation crash rather than code execution.
The record
- CVE
- CVE-2025-70330
- Published
- Mar 11, 2026
- Updated
- Mar 11, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 11, 2026CVE publishedPublication date reported by the CVE source.
- Mar 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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.
Public exploit references
- Easy Grade Pro crafted .EGP crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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