diff --git a/modules/video_coding/timing/BUILD.gn b/modules/video_coding/timing/BUILD.gn
index 985223f..d2479ae 100644
--- a/modules/video_coding/timing/BUILD.gn
+++ b/modules/video_coding/timing/BUILD.gn
@@ -60,6 +60,7 @@
     "../../../api/units:timestamp",
     "../../../rtc_base",
     "../../../rtc_base:checks",
+    "../../../rtc_base:logging",
     "../../../rtc_base:rtc_numerics",
     "../../../rtc_base:safe_conversions",
     "../../../rtc_base/experiments:field_trial_parser",
diff --git a/modules/video_coding/timing/jitter_estimator.cc b/modules/video_coding/timing/jitter_estimator.cc
index cc8680c..a314abd 100644
--- a/modules/video_coding/timing/jitter_estimator.cc
+++ b/modules/video_coding/timing/jitter_estimator.cc
@@ -24,6 +24,7 @@
 #include "api/units/timestamp.h"
 #include "modules/video_coding/timing/rtt_filter.h"
 #include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
 #include "rtc_base/numerics/safe_conversions.h"
 #include "system_wrappers/include/clock.h"
 
@@ -85,9 +86,48 @@
 
 constexpr char JitterEstimator::Config::kFieldTrialsKey[];
 
+JitterEstimator::Config JitterEstimator::Config::ParseAndValidate(
+    absl::string_view field_trial) {
+  Config config;
+  config.Parser()->Parse(field_trial);
+
+  // The `MovingPercentileFilter` RTC_CHECKs on the validity of the
+  // percentile and window length, so we'd better validate the field trial
+  // provided values here.
+  if (config.max_frame_size_percentile) {
+    double original = *config.max_frame_size_percentile;
+    config.max_frame_size_percentile = std::min(std::max(0.0, original), 1.0);
+    if (config.max_frame_size_percentile != original) {
+      RTC_LOG(LS_ERROR) << "Skipping invalid max_frame_size_percentile="
+                        << original;
+    }
+  }
+  if (config.frame_size_window && config.frame_size_window < 1) {
+    RTC_LOG(LS_ERROR) << "Skipping invalid frame_size_window="
+                      << *config.frame_size_window;
+    config.frame_size_window = 1;
+  }
+
+  // General sanity checks.
+  if (config.num_stddev_delay_outlier &&
+      config.num_stddev_delay_outlier < 0.0) {
+    RTC_LOG(LS_ERROR) << "Skipping invalid num_stddev_delay_outlier="
+                      << *config.num_stddev_delay_outlier;
+    config.num_stddev_delay_outlier = 0.0;
+  }
+  if (config.num_stddev_size_outlier && config.num_stddev_size_outlier < 0.0) {
+    RTC_LOG(LS_ERROR) << "Skipping invalid num_stddev_size_outlier="
+                      << *config.num_stddev_size_outlier;
+    config.num_stddev_size_outlier = 0.0;
+  }
+
+  return config;
+}
+
 JitterEstimator::JitterEstimator(Clock* clock,
                                  const FieldTrialsView& field_trials)
-    : config_(Config::Parse(field_trials.Lookup(Config::kFieldTrialsKey))),
+    : config_(Config::ParseAndValidate(
+          field_trials.Lookup(Config::kFieldTrialsKey))),
       avg_frame_size_median_bytes_(static_cast<size_t>(
           config_.frame_size_window.value_or(kDefaultFrameSizeWindow))),
       max_frame_size_bytes_percentile_(
diff --git a/modules/video_coding/timing/jitter_estimator.h b/modules/video_coding/timing/jitter_estimator.h
index d7561c2..dd55907 100644
--- a/modules/video_coding/timing/jitter_estimator.h
+++ b/modules/video_coding/timing/jitter_estimator.h
@@ -11,6 +11,7 @@
 #ifndef MODULES_VIDEO_CODING_TIMING_JITTER_ESTIMATOR_H_
 #define MODULES_VIDEO_CODING_TIMING_JITTER_ESTIMATOR_H_
 
+#include <algorithm>
 #include <memory>
 #include <queue>
 
@@ -38,11 +39,8 @@
   struct Config {
     static constexpr char kFieldTrialsKey[] = "WebRTC-JitterEstimatorConfig";
 
-    static Config Parse(absl::string_view field_trial) {
-      Config config;
-      config.Parser()->Parse(field_trial);
-      return config;
-    }
+    // Parses a field trial string and validates the values.
+    static Config ParseAndValidate(absl::string_view field_trial);
 
     std::unique_ptr<StructParametersParser> Parser() {
       // clang-format off
diff --git a/modules/video_coding/timing/jitter_estimator_unittest.cc b/modules/video_coding/timing/jitter_estimator_unittest.cc
index f53208c..b018d48 100644
--- a/modules/video_coding/timing/jitter_estimator_unittest.cc
+++ b/modules/video_coding/timing/jitter_estimator_unittest.cc
@@ -26,7 +26,6 @@
 #include "rtc_base/time_utils.h"
 #include "system_wrappers/include/clock.h"
 #include "test/gtest.h"
-#include "test/scoped_key_value_config.h"
 
 namespace webrtc {
 namespace {
@@ -237,5 +236,25 @@
   EXPECT_GT(outlier_jitter_4x.ms(), outlier_jitter_3x.ms());
 }
 
+class MisconfiguredFieldTrialsJitterEstimatorTest : public JitterEstimatorTest {
+ protected:
+  MisconfiguredFieldTrialsJitterEstimatorTest()
+      : JitterEstimatorTest(
+            "WebRTC-JitterEstimatorConfig/"
+            "max_frame_size_percentile:-0.9,"
+            "frame_size_window:-1,"
+            "num_stddev_delay_outlier:-2,"
+            "num_stddev_size_outlier:-23.1/") {}
+  ~MisconfiguredFieldTrialsJitterEstimatorTest() {}
+};
+
+TEST_F(MisconfiguredFieldTrialsJitterEstimatorTest, FieldTrialsAreValidated) {
+  JitterEstimator::Config config = estimator_.GetConfigForTest();
+  EXPECT_EQ(*config.max_frame_size_percentile, 0.0);
+  EXPECT_EQ(*config.frame_size_window, 1);
+  EXPECT_EQ(*config.num_stddev_delay_outlier, 0.0);
+  EXPECT_EQ(*config.num_stddev_size_outlier, 0.0);
+}
+
 }  // namespace
 }  // namespace webrtc