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| Vulnerability ID | VCID-xnx2-x6a6-nfgc |
| Aliases |
CVE-2020-27782
GHSA-rhcw-wjcm-9h6g |
| Summary | undertow: special character in query results in server errors |
| Status | Published |
| Exploitability | None |
| Weighted Severity | None |
| Risk | None |
| Affected and Fixed Packages | Package Details |
| System | Score | Found at |
|---|---|---|
| cvssv3 | 7.5 | https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27782.json |
| epss | 0.00182 | https://api.first.org/data/v1/epss?cve=CVE-2020-27782 |
| cvssv3.1 | 7.5 | https://bugzilla.redhat.com/show_bug.cgi?id=1901304 |
| generic_textual | HIGH | https://bugzilla.redhat.com/show_bug.cgi?id=1901304 |
| cvssv3.1_qr | HIGH | https://github.com/advisories/GHSA-rhcw-wjcm-9h6g |
| cvssv3.1 | 7.5 | https://github.com/undertow-io/undertow/pull/997/commits/98a9ab7f2d7fe7a7254eaf17d47816c452169c90 |
| generic_textual | HIGH | https://github.com/undertow-io/undertow/pull/997/commits/98a9ab7f2d7fe7a7254eaf17d47816c452169c90 |
| cvssv3.1 | 7.5 | https://issues.redhat.com/browse/UNDERTOW-1813 |
| generic_textual | HIGH | https://issues.redhat.com/browse/UNDERTOW-1813 |
| cvssv3.1 | 7.5 | https://nvd.nist.gov/vuln/detail/CVE-2020-27782 |
| generic_textual | HIGH | https://nvd.nist.gov/vuln/detail/CVE-2020-27782 |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.39619 |
| EPSS Score | 0.00182 |
| Published At | May 29, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-05-29T09:17:56.654331+00:00 | RedHat Importer | Import | https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27782.json | 38.6.0 |