CVE-2019-20809Network attack vector

Asset-price limit bypass via unchecked setPrice input

Published Jun 3, 2020 · Updated Aug 5, 2024

Improper input validation in Compound Finance Compound Price Oracle 1.0 through 2.0 allows attackers to set out-of-bounds asset prices. The setPrice path in PriceOracle.sol records a price-poster-supplied asset price without enforcing the intended maximum price swing. Exploitation requires price-poster authority and permits manipulated oracle values beyond the protocol's advertised swing bounds.

CVSS severity7.5
High
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Compound Finance Compound Price Oracle 1.0 through 2.0 allows attackers to set out-of-bounds asset prices. The setPrice path in PriceOracle.sol records a price-poster-supplied asset price without enforcing the intended maximum price swing. Exploitation requires price-poster authority and permits manipulated oracle values beyond the protocol's advertised swing bounds.

The record

CVE
CVE-2019-20809
Published
Jun 3, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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