CVE-2019-18182

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 3.7%, top 12% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

pacman before 5.2 is vulnerable to arbitrary command injection in conf.c in the download_with_xfercommand() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable a non-default XferCommand and retrieve an attacker-controlled crafted database and package.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
88.5%
KEV
Not listed

Published

February 24, 2020

Last Modified

November 21, 2024

Advisory Details (6)

Auto-updated Jun 8, 2026
No patch confirmed yet.
generic

[SECURITY] Fedora 31 Update: pacman-5.2.1-2.fc31 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RHEPLEA33Y6C/
generic

alpine-secdb/v3.11/community.yaml at master · alpinelinux/alpine-secdb · GitHub

https://github.com/alpinelinux/alpine-secdb/blob/master/v3.11/community.yaml
generic

Explore groups · GitLab

https://git.archlinux.org/pacman.git/tree/src/pacman/conf.c?h=v5.1.3#n263
generic

Explore groups · GitLab

https://git.archlinux.org/pacman.git/commit/?id=808a4f15ce82d2ed7eeb06de73d0f313620558ee
generic

[SECURITY] Fedora 32 Update: pacman-5.2.1-2.fc32 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU6NFIP5JUG3/
generic

[SECURITY] Fedora 30 Update: pacman-5.2.1-2.fc30 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5EZUNWXS7BW/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:42 UTCEG score recompute
  3. 2026-07-22 22:22 UTCEG score recompute
  4. 2026-07-22 14:05 UTCEPSS rescore
  5. 2026-07-21 15:22 UTCEPSS rescore
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  7. 2026-07-20 17:04 UTCEPSS rescore
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  9. 2026-07-19 14:28 UTCEPSS rescore
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  14. 2026-07-16 16:59 UTCEPSS rescore
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  18. 2026-07-13 22:27 UTCEPSS rescore
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  21. 2026-07-12 05:43 UTCEPSS rescore
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  25. 2026-07-09 19:06 UTCEPSS rescore
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  1. 2026-07-08 15:11 UTCEPSS rescore
  2. 2026-07-07 13:43 UTCEPSS rescore
  3. 2026-07-06 16:25 UTCEPSS rescore
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  5. 2026-07-06 02:20 UTCEPSS rescore
  6. 2026-07-05 02:27 UTCEPSS rescore
  7. 2026-07-04 06:28 UTCEPSS rescore
  8. 2026-07-01 15:03 UTCEPSS rescore
  9. 2026-07-01 15:03 UTCEPSS rescore
  10. 2026-06-30 23:20 UTCEPSS rescore
  11. 2026-06-28 14:04 UTCEPSS rescore
  12. 2026-06-28 04:54 UTCEPSS rescore
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  14. 2026-06-27 03:06 UTCEPSS rescore
  15. 2026-06-25 13:47 UTCEPSS rescore
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  17. 2026-06-24 14:03 UTCEPSS rescore
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  19. 2026-06-23 21:31 UTCEPSS rescore
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  21. 2026-06-22 14:23 UTCEPSS rescore
  22. 2026-06-21 14:54 UTCEPSS rescore
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  24. 2026-06-21 01:57 UTCEPSS rescore
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  26. 2026-06-19 19:23 UTCEPSS rescore
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  28. 2026-06-18 17:50 UTCEPSS rescore
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  30. 2026-06-16 17:50 UTCEPSS rescore
  31. 2026-06-15 17:45 UTCEPSS rescore
  32. 2026-06-13 22:58 UTCEPSS rescore
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  34. 2026-06-11 13:58 UTCEPSS rescore
  35. 2026-06-10 22:16 UTCEPSS rescore
  36. 2026-06-10 13:19 UTCEPSS rescore
  37. 2026-06-08 14:15 UTCEPSS rescore
  38. 2026-06-07 15:23 UTCEPSS rescore
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  40. 2026-06-06 13:45 UTCEPSS rescore
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  42. 2026-06-05 22:45 UTCEPSS rescore
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  44. 2026-06-05 06:08 UTCEPSS rescore
  45. 2026-06-05 06:08 UTCEPSS rescore
  46. 2026-06-04 13:10 UTCEPSS rescore
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  48. 2026-06-02 20:11 UTCEPSS rescore
  49. 2026-06-02 20:11 UTCEPSS rescore
  50. 2026-06-01 13:50 UTCEPSS rescore
  51. 2026-06-01 13:50 UTCEPSS rescore
  52. 2026-05-31 22:29 UTCEPSS rescore
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  54. 2026-05-31 00:14 UTCEPSS rescore
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  56. 2026-05-29 13:42 UTCEPSS rescore
  57. 2026-05-28 13:43 UTCEPSS rescore
  58. 2026-05-27 13:38 UTCEPSS rescore
  59. 2026-05-27 07:20 UTCEG score recompute
  60. 2026-05-27 07:20 UTCGHSA enrichment
  61. 2026-05-26 13:42 UTCEPSS rescore
  62. 2026-05-26 13:42 UTCEPSS rescore
  63. 2026-05-26 07:17 UTCEPSS rescore
  64. 2026-05-26 07:17 UTCEPSS rescore
  65. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2019-18182?
CVE-2019-18182 is a critical vulnerability published on February 24, 2020. pacman before 5.2 is vulnerable to arbitrary command injection in conf.c in the downloadwithxfercommand() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable a non-default XferCommand and retrieve an attacker-controlled crafted…
When was CVE-2019-18182 disclosed?
CVE-2019-18182 was first published in the National Vulnerability Database on February 24, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-18182 actively exploited?
CVE-2019-18182 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-18182?
CVE-2019-18182 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-18182?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-18182, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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