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CVE-2017-11879
ASP.NET Core 2.0 allows an attacker to steal log-in session information such as cookies or authentication tokens via a specially crafted…
- 8.8HighCVSS base score
- 9.4%Exploitation in 30 daysEPSS · top 4.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
ASP.NET Core 2.0 allows an attacker to steal log-in session information such as cookies or authentication tokens via a specially crafted URL aka "ASP.NET Core Elevation Of Privilege Vulnerability".
Timeline
ID reserved
By microsoft
- 4 months later
· 4 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 9.4% · top 4.6% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
Microsoft Corporation · ASP.NET Core
- affected ASP.NET Core 2.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- NuGetMicrosoft.AspNetCore.AllGHSA-3wcj-rg8q-9cqv (opens in a new tab)
- NuGetMicrosoft.AspNetCore.Mvc.CoreGHSA-3wcj-rg8q-9cqv (opens in a new tab)
References
3
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11879 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 101713 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1039793 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-2253 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3wcj-rg8q-9cqv (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-11879)Record last updated .