CVE-2019-18936
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class...
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
- Record
CVE-2019-18936- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-674
- Updated
- 2026-11-02
CVE List No score
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
- Record
CVE-2019-18936- Updated
- 2026-11-02
EUVDEUVD-2019-8609 No score
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
- Record
EUVD-2019-8609- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wx4x-g99q-9526 No score
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class...
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
- Record
GHSA-wx4x-g99q-9526- Updated
- 2026-11-02
OSV
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
- Record
CVE-2019-18936- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-18936
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
- Record
DEBIAN-CVE-2019-18936- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-18936
UniValue::read() in UniValue before 1.0.5 allow attackers to cause a denial of service (the class internal data reaches an inconsistent state) via input data that triggers an error.
- Record
UBUNTU-CVE-2019-18936- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libunivalueDebian:12 |
before 1.1.1-2 | 1.1.1-2 |
libunivalueDebian:13 |
before 1.1.1-2 | 1.1.1-2 |
libunivalueDebian:14 |
before 1.1.1-2 | 1.1.1-2 |
libunivalueUbuntu:18.04:LTS |
All versions, plus listed versions 1.0.2-31.0.3-4 |
None known |
libunivalueUbuntu:20.04:LTS |
All versions, plus listed versions 1.0.4-21.0.4-2build1 |
None known |
libunivalueUbuntu:22.04:LTS |
All versions, plus listed versions 1.1.1+20191112-1ubuntu1 |
None known |
libunivalueUbuntu:24.04:LTS |
All versions, plus listed versions 1.1.1+20191112-1ubuntu11.1.1+20191112-2ubuntu1 |
None known |
libunivalueUbuntu:25.10 |
All versions, plus listed versions 1.1.1+20191112-3ubuntu1 |
None known |
libunivalueUbuntu:26.10 |
All versions, plus listed versions 1.1.1+20191112-4 |
None known |
libunivalueUbuntu:26.04:LTS |
All versions, plus listed versions 1.1.1+20191112-3ubuntu11.1.1+20191112-4 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-18936 is a high vulnerability (CVSS 7.5) in Bloq Univalue, published March 21, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.62%, the 76th percentile. Fixed in libunivalue 1.1.1-2.